format: center repo badges

Apply centering proposed at #5983 but not implemented in #6631
Adding free object-oriented programming course (#6661 )
2022-01-03 23:25:31 +01:00 · 2022-01-03 09:37:45 -05:00 · 2022-01-02 13:09:20 -05:00 · 2022-01-01 14:47:24 -05:00 · 2022-01-01 14:42:04 -05:00 · 2022-01-01 14:30:16 -05:00
86 changed files with 698 additions and 384 deletions
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@ -11,7 +11,7 @@ Add resource(s) | Remove resource(s) | Add info | Improve repo
 ### For book lists, is it a book? For course lists, is it a course? etc.

 ## Checklist:
- [ ] Read our [contributing guidelines](https://github.com/EbookFoundation/free-programming-books/blob/master/CONTRIBUTING.md)
+- [ ] Read our [contributing guidelines](https://github.com/EbookFoundation/free-programming-books/blob/main/docs/CONTRIBUTING.md)
 - [ ] Search for duplicates.
 - [ ] Include author(s) and platform where appropriate.
 - [ ] Put lists in alphabetical order, correct spacing.
--- a/README.md
+++ b/README.md
@ -1,6 +1,15 @@
 This page is available as an easy-to-read website at [https://ebookfoundation.github.io/](https://ebookfoundation.github.io/free-programming-books/).

-# List of Free Learning Resources In Many Languages [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
+
+# List of Free Learning Resources In Many Languages
+
+<div align="center">
+
+[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
+[![License: CC BY 4.0](https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg)](https://creativecommons.org/licenses/by/4.0/)
+
+</div>
+

 ## Intro

@ -13,7 +22,7 @@ The [Free Ebook Foundation](https://ebookfoundation.org) now administers the rep

 ### How To Contribute

-Please read [CONTRIBUTING](CONTRIBUTING.md). If you're new to GitHub, [welcome](HOWTO.md)!
+Please read [CONTRIBUTING](docs/CONTRIBUTING.md). If you're new to GitHub, [welcome](docs/HOWTO.md)! Remember to abide by our [Code of Conduct](docs/CODE_OF_CONDUCT.md) too. ([translations](#translations) also available)


 ### How to Share
@ -79,6 +88,7 @@ Please read [CONTRIBUTING](CONTRIBUTING.md). If you're new to GitHub, [welcome](
 ### Free Online Courses

 + [Arabic / al arabiya / العربية](courses/free-courses-ar.md)
+ [Bengali / বাংলা](courses/free-courses-bn.md)
 + [Bulgarian / български](courses/free-courses-bg.md)
 + [English](courses/free-courses-en.md)
 + [Finnish](courses/free-courses-fi.md)
@ -127,6 +137,7 @@ Free Podcasts and Screencasts:
 + [English](casts/free-podcasts-screencasts-en.md)
 + [Finnish / Suomi](casts/free-podcasts-screencasts-fi.md)
 + [French / français](casts/free-podcasts-screencasts-fr.md)
+ [Hebrew / עברית](casts/free-podcasts-screencasts-he.md)
 + [Indonesian / Bahasa Indonesia](casts/free-podcasts-screencasts-id.md)
 + [Persian / Farsi (Iran) / فارسى](casts/free-podcasts-screencasts-fa_IR.md)
 + [Polish / polski / język polski / polszczyzna](casts/free-podcasts-screencasts-pl.md)
@ -145,6 +156,109 @@ Free Podcasts and Screencasts:
 + [English](more/free-programming-playgrounds.md)


+### Translations
+
+We have Contributing, How-to, and Code of Conduct documents translated into many languages.
+
+- Arabic / al arabiya / العربية
+  - [How-to](docs/HOWTO-ar.md)
+- Azerbaijani / Азәрбајҹан дили / آذربايجانجا ديلي
+- Bengali / বাংলা
+  - [How-to](docs/HOWTO-bn.md)
+- Bosnian / bosanski jezik
+  - [How-to](docs/HOWTO-bs.md)
+- Bulgarian / български
+- Burmese / မြန်မာဘာသာ
+- Chinese / 中文
+  - [Contributing](docs/CONTRIBUTING-zh.md)
+  - [How-to](docs/HOWTO-zh.md)
+- Chinese (traditional) / 繁體中文
+  - [Contributing](docs/CONTRIBUTING-zh_TW.md)
+  - [How-to](docs/HOWTO-zh_TW.md)
+- Czech / čeština / český jazyk
+- Danish / dansk
+- Dutch / Nederlands
+  - [How-to](docs/HOWTO-nl.md)
+- English
+  - [Code of Conduct](docs/CODE_OF_CONDUCT.md)
+  - [Contributing](docs/CONTRIBUTING.md)
+  - [How-to](docs/HOWTO.md)
+- Estonian / eesti keel
+- Finnish / suomi / suomen kieli
+- Filipino
+  - [Kodigo ng Pag-uugali](docs/CODE_OF_CONDUCT-fil.md)
+  - [Contributing](docs/CONTRIBUTING-fil.md)
+  - [How-to](docs/HOWTO-fil.md)
+- French / français
+  - [Code de Contrat](docs/CODE_OF_CONDUCT-fr.md)
+  - [Contributing](docs/CONTRIBUTING-fr.md)
+  - [How-to](docs/HOWTO-fr.md)
+- German / Deutsch
+  - [Verhaltenskodex](docs/CODE_OF_CONDUCT-de.md)
+  - [How-to](docs/HOWTO-de.md)
+  - [Mitwirken](docs/CONTRIBUTING-de.md)
+- Greek / ελληνικά
+  - [Κώδικα Δεοντολογίας](docs/CODE_OF_CONDUCT-el.md)
+  - [Contributing](docs/CONTRIBUTING-el.md)
+  - [How-to](docs/HOWTO-el.md)
+- Hebrew / עברית
+- Hindi / हिन्दी
+  - [आचार संहिता](docs/CODE_OF_CONDUCT-hi.md)
+  - [How-to](docs/HOWTO-hi.md)
+- Hungarian / magyar / magyar nyelv
+- Indonesian / Bahasa Indonesia
+  - [Berkontribusi](docs/CONTRIBUTING-id.md)
+  - [Kode Etik](docs/CODE_OF_CONDUCT-id.md)
+  - [How-to](docs/HOWTO-id.md)
+- Italian / italiano
+  - [Codice di Comportamento](docs/CODE_OF_CONDUCT-it.md)
+  - [Contributing](docs/CONTRIBUTING-it.md)
+  - [How-to](docs/HOWTO-it.md)
+- Japanese / 日本語
+- Khmer / Cambodian / ខ្មែរ
+  - [How-to](docs/HOWTO-km.md)
+- Korean / 한국어 [韓國語]
+  - [행동강령](docs/CODE_OF_CONDUCT-ko.md)
+  - [Contributing](docs/CONTRIBUTING-ko.md)
+  - [How-to](docs/HOWTO-ko.md)
+- Norwegian / Norsk
+- Persian / Farsi (Iran) / فارسى
+  - [مرام‌نامه‌ی](docs/CODE_OF_CONDUCT-fa_IR.md)
+  - [Contributing](docs/CONTRIBUTING-fa_IR.md)
+  - [How-to](docs/HOWTO-fa_IR.md)
+- Polish / polski / język polski / polszczyzna
+  - [Code of Conduct](docs/CODE_OF_CONDUCT-pl.md)
+  - [How-to](docs/HOWTO-pl.md)
+- Portuguese (Brazil)
+  - [Código de Conduta](docs/CODE_OF_CONDUCT-pt_BR.md)
+  - [Contributing](docs/CONTRIBUTING-pt_BR.md)
+  - [How-to](docs/HOWTO-pt_BR.md)
+- Portuguese (Portugal)
+  - [How-to](docs/HOWTO-pt_PT.md)
+- Romanian (Romania) / limba română / român
+- Russian / Русский язык
+  - [Кодекс поведения](docs/CODE_OF_CONDUCT-ru.md)
+  - [Contributing](docs/CONTRIBUTING-ru.md)
+- Slovak / slovenčina
+  - [How-to](docs/HOWTO-sk.md)
+- Spanish / español / castellano
+  - [Código de Conducta](docs/CODE_OF_CONDUCT-es.md)
+  - [Contributing](docs/CONTRIBUTING-es.md)
+  - [How-to](docs/HOWTO-es.md)
+- Swedish / Svenska
+  - [How-to](docs/HOWTO-sv.md)
+- Tamil / தமிழ்
+- Thai / ไทย
+  - [How-to](docs/HOWTO-th.md)
+- Turkish / Türkçe
+  - [How-to](docs/HOWTO-tr.md)
+- Ukrainian / Українська
+  - [Кодекс Поведінки](docs/CODE_OF_CONDUCT-uk.md)
+  - [How-to](docs/HOWTO-uk.md)
+- Vietnamese / Tiếng Việt
+  - [Đóng Góp](docs/CONTRIBUTING-vi.md)
+  - [How-to](docs/HOWTO-vi.md)
+
 ## License

 Each file included in this repository is licensed under the [CC BY License](LICENSE).
--- a/books/free-programming-books-ar.md
+++ b/books/free-programming-books-ar.md
@ -25,7 +25,8 @@
 ### Arduino

 * [احترف الأردوينو](https://www.ev-center.com/uploads/2/1/2/6/21261678/arduino.pdf) - Working Group (PDF)
-* [أردوينو ببساطة](https://simplyarduino.com/%D9%83%D8%AA%D8%A7%D8%A8-%D8%A7%D8%B1%D8%AF%D9%88%D9%8A%D9%86%D9%88-%D8%A8%D8%A8%D8%B3%D8%A7%D8%B7%D8%A9/) - Abdallah Ali Abdallah (PDF)
+* [اردوينو ببساطة](https://simplyarduino.com/%D9%83%D8%AA%D8%A7%D8%A8-%D8%A7%D8%B1%D8%AF%D9%88%D9%8A%D9%86%D9%88-%D8%A8%D8%A8%D8%B3%D8%A7%D8%B7%D8%A9/) - عبدالله علي عبدالله, Abdallah Ali Abdallah Elmasry (PDF)
+* [AVR ببساطة: من تشغيل دايود ضوئي إلى أنظمة الوقت الحقيقي](https://github.com/abdallah-ali-abdallah/Simply-AVR-Book) - عبدالله علي عبدالله, Abdallah Ali Abdallah Elmasry (ODT, PDF)


 ### Artificial Intelligence
--- a/books/free-programming-books-bn.md
+++ b/books/free-programming-books-bn.md
@ -1,152 +1,38 @@
-
 ### Index

-* [Android](#android)
-* [Bootstrap](#bootstrap)
+* [Algorithms](#algorithms)
 * [C](#c)
-* [C Sharp](#c-sharp)
-* [C++](#c-1)
-* [Competitive Programming](#competitive-programming)
-* [CSS](#css)
-* [Dart](#dart)
-* [Flutter](#flutter)
-* [Git](#git)
-* [HTML](#html)
 * [Java](#java)
 * [JavaScript](#javascript)
-* [jQuery](#jquery)
-* [Kotlin](#kotlin)
 * [Machine Learning](#machine-learning)
 * [Misc](#misc)
-* [MySQL](#mysql)
-* [NodeJS](#nodejs)
-* [OOP](#oop)
-* [PHP](#php)
 * [Python](#python)
-* [ReactJS](#reactjs)
-* [Svelte](#svelte)
-* [TypeScript](#typescript)
-* [Visual Studio Code](#visual-studio-code)


-### Android
+### Algorithms

-* [Android Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3p9xzYLFGdfYliIRBLVDRV5) - Anisul Islam
-* [Android Firebase Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oDurEmECb5U_BZ1hrLaHx-) - Anisul Islam
-* [Android SQLite Database Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oJBRutwsFgUKrKJCjv9K3p) - Anisul Islam
-* [Android Tutorials Material Design](https://www.youtube.com/playlist?list=PLgH5QX0i9K3ru-TfN-YsRWKe4EEOLrWjn) - Anisul Islam
-* [Java, OOP & Android tutorials for beginners in Bengali](https://www.youtube.com/playlist?list=PLV3rqOvr9vgkmELwlSouvJtROQ6MWRbIH) - Zulkarnine Mahmud
-
-
-### Bootstrap
-
-* [Bootstrap 4 Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBr2NqbL3q71nk5FX8zB0nK) - Stack Learner
-* [Bootstrap 5 and 4 Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oC_wmWEZa2xWxJauIRQ9kG) - Anisul Islam
+* [Dynamic Programming Book «ডাইনামিক প্রোগ্রামিং বই»](https://dp-bn.github.io) - Tasmeem Reza, Mamnoon Siam (PDF, [LaTeX](https://github.com/Bruteforceman/dynamic-progamming-book))


 ### C

-* [C - All you need to know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVASsjyqiNzgjUWHbDkN2Scy) - Stack Learner
-* [C Programming Bangla Tutorial Course](https://www.youtube.com/playlist?list=PLgH5QX0i9K3pCMBZcul1fta6UivHDbXvz) - Anisul Islam
-* [Computer Programming](http://cpbook.subeen.com/p/blog-page.html) - Tamim Shahriar Subeen 
-* [Pattern Printing in C](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oTxQhx2kejYmQn6qtRULCD) - Anisul Islam
-
-
-<h3 id="cpp">C++</h3>
-
-* [C++ Bangla Tutorial Course](https://www.youtube.com/playlist?list=PLgH5QX0i9K3q0ZKeXtF--CZ0PdH1sSbYL) - Anisul Islam
-
-
-### C Sharp
-
-* [C# and ASP.NET MVC Full Bangla Tutorial BITM](https://www.youtube.com/playlist?list=PL_g-DE60bXDBpjMPUWGbmCLHnQDIIcw-6) - Learn With Nirash
-* [C# bangla tutorial | Basic to advance in depth bangla course](https://www.youtube.com/playlist?list=PLbC4KRSNcMnqQakB2xlZPoaV6uau4wTIt) - Learn Hunter
-* [C# OOP (object oriented programming) BanglaTutorials](https://www.youtube.com/playlist?list=PLqCbg_KAOnCe1RLKP2SVmSHZOCD-fWe3p) - Asp Dot Net Explorer
-
-
-### Competitive Programming
-
-* [Dynamic Programming Book](https://dp-bn.github.io) - Tasmeem Reza and Mamnoon Siam
-
-
-### CSS
-
-* [CSS Complete Course in Bangla 2021](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qjCBXjTmv7Xeh8MDUUVJDO) - Anisul Islam
-* [CSS3 and CSS4 Weird Parts Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVD3oeT3ckKBmnc7krm-SZl2) - Stack Learner
-
-
-### Dart
-
-* [Dart All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVC2-nXUrvpcQEz3FgCSIQHT) - Stack Learner
-
-
-### Flutter
-
-* [Flutter Bangla Tutorial](https://www.youtube.com/playlist?list=PLg87mxEuu8-692INeEsxudyVifz7M3efy) - Techno BD XYZ
-* [Flutter Tutorial Bangla](https://www.youtube.com/playlist?list=PLZJlOXxGEkuyZQ-vA7B5vpvvtWU3Upo6p) - Soykot Hosen
-
-
-### Git
-
-* [Crash Course - সহজ বাংলায় Git & GitHub - Bangla ( বাংলা ) Tutorial](https://www.youtube.com/watch?v=oe21Nlq8GS4&t=182s) - Learn with Sumit
-* [Git and Github in One Video (Theory + Practical) | A 2 Z in Bangla](https://www.youtube.com/watch?v=4KdGgGsIDeA&t=787s) - SHAJ.T3CH
-* [Git Bangla Tutorial Complete](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDDw5eyzuRDXBzgdnW7UpDF) - Stack Learner
-
-
-### HTML
-
-* [HTML Complete Course in Bangla 2021(Beginner to Advanced)](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oHBr5dsumGwjUxByN5Lnw3) - Anisul Islam
+* [Computer Programming «কম্পিউটার প্রোগ্রামিং ১ম খণ্ড»](https://cpbook.subeen.com) - Tamim Shahriar Subeen (HTML)


 ### Java

-* [Java Bangla Tutorials | CORE Java | Complete OOP](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oAZUB2QXR-dZac0c9HNyRa) - Anisul Islam
-* [Java Swing Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rAHKr6IteF5kdgN6BorH9l) - Anisul Islam
-* [জাভা প্রোগ্রামিং](http://java.howtocode.dev) - Bazlur Rahman, et al. (howtocode.dev) (gitbook)
+* [বাংলায় জাভা প্রোগ্রামিং শেখার কোর্স](http://java.howtocode.dev) - Bazlur Rahman, et al. (howtocode.dev)


 ### JavaScript

-* [Express JS Crash Course in Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDm9HkiP4h_76qNBZix6XME) - Stack Learner
-* [Functional JavaScript Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDPR9fASxugXgQAWkZLcmt1) - Stack Learner
-* [JavaScript All You Need to Know | JS Bangla Tutorial | Stack Learner](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAu_dWUVFbscqZdTzE8t6Z1) - Stack Learner
-* [JavaScript Bangla Tutorial Course 2021](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qzryglMjcyEktz4q7ySunX) - Anisul Islam
-* [JavaScript Behind The Scene Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDPaOrWvTIuhb5GRoJVWiE2) - Stack Learner
-* [JavaScript Full Playlist With Order](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAJTV_1ZXwB1XIiFkK0ddZA) - Stack Learner
-* [Make Fun of JavaScript Array](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDr08QgQHljCecWtA4jBLnS) - Stack Learner
-* [হাতেকলমে জাভাস্ক্রিপ্ট](https://zonayed.js.org) - Zonayed Ahmed
-* [JS Bangla Tutorial Series for Beginners](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9OkrURufHpGUUTBjJhO9Ghy) - Learn with Sumit
-* [Modern JavaScript ES6 Bangla Tutorial](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9MFjMRp9EEHWKArbi0wdgXG) - Learn with Sumit
-* [Play with DOM - Bangla](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9MJDxMOzhYVuTrO1b5n-Tq_) - Learn with Sumit
-
-
-### jQuery
-
-* [jQuery Bangla Series for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3pSJG9Hwjnykd0hLGEsW4DB) - Anisul Islam
-
-
-### Kotlin
-
-* [Chapter 1 : Kotlin Basic Concepts Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDpRWRnXPWZcWIvz0JbeQe5) - Stack Learner
+* [হাতেকলমে জাভাস্ক্রিপ্ট: সম্পূর্ণ বাংলায় হাতেকলমে জাভাস্ক্রিপ্ট শিখুন](https://zonayed.js.org) - Zonayed Ahmed (HTML)


 ### Machine Learning

-* [শূন্য থেকে পাইথন মেশিন লার্নিং : হাতেকলমে সাইকিট-লার্ন](https://raqueeb.gitbook.io/scikit-learn/) - Rakibul Hassan
-* [হাতে কলমে মেশিন লার্নিং ১](https://rakibul-hassan.gitbook.io/mlbook-titanic/) - Rakibul Hassan
-
-
-### NodeJS
-
-* [Dive Into NodeJS](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDHFj-ecFSU0SU-B0TuJRk9) - Stack Learner
-
-
-### OOP
-
-* [Java and OOO. Learn Object Oriented with Real Example](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDS-5KCnZyPl0LKQ8m49CHM) - Stack Learner
-* [Java and OOP Basics](https://www.youtube.com/playlist?list=PL_XxuZqN0xVB5kP3uxERI1rdrdrNifNwJ) - Stack Learner
-* [Java and OOP: Java Built in Classes and Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBNvGFN6eIre7xjfnb6aVfB) - Stack Learner
-* [Object Oriented Programming Main Theory in Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCqNHQtxzS9LbeNRMG4AJmG) - Stack Learner
+* [শূন্য থেকে পাইথন মেশিন লার্নিং: হাতেকলমে সাইকিট-লার্ন](https://raqueeb.gitbook.io/scikit-learn/) - Rakibul Hassan (HTML, [Jupyter Notebook](https://github.com/raqueeb/ml-python)) (gitbook)
+* [হাতেকলমে মেশিন লার্নিং: পরিচিতি, প্রজেক্ট টাইটানিক, আর এবং পাইথনসহ](https://rakibul-hassan.gitbook.io/mlbook-titanic/) - Rakibul Hassan (HTML, [scripts](https://github.com/raqueeb/mltraining)) (gitbook)


 ### Misc
@ -155,52 +41,8 @@
 * [ডেভসংকেত: বাংলা চিটশিটের ভান্ডার](https://devsonket.com) - Devsonket Team


-### MySQL
-
-* [Bangla MySQL Database Tutorials](https://www.youtube.com/playlist?list=PLTydW-y9HsbQ2ztoaLBJTd4wwjc_oqWx4) - Delowar Jahan Imran, Training with Live Project (YouTube)
-* [mysql bangla tutorial \| Mysql Database \| HSC,CSE, Anyone](https://www.youtube.com/playlist?list=PLbC4KRSNcMnqp4x6XstgFCVi6XVu37t99) - Sohidul Islam, Learn Hunter (YouTube)
-* [MySql Database Bangla Tutorial Beginner to Advanced](https://www.youtube.com/playlist?list=PLH246IZCIBeA4h1R6fdgK06kj9lMb3joi) - Shoaib Hossain, Soft-All (YouTube)
-* [MySQL Database Bangla Tutorials (HSC student / Anyone)](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qLcx9DvVDWmNJ7riPvxzCD) - Anisul Islam (YouTube)
-
-
-### PHP
-
-* [PHP All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCFLIrGA1GaxacvPTDQcsMV) - Stack Learner
-
-
 ### Python

-* [Python All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCH8fRfZ8sUuKEQQYIFMjtJ) - Stack Learner
-* [Python Bangla Tutorials for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rz5XqMsTk41_j15_6682BN) - Anisul Islam
 * [পাইথন প্রোগ্রামিং বই](http://pybook.subeen.com) - Tamim Shahriar Subeen
 * [বাংলায় পাইথন](https://python.howtocode.dev) - Nuhil Mehdy
 * [সহজ ভাষায় পাইথন ৩](https://python.maateen.me) - Maksudur Rahman Maateen
-
-
-### ReactJS
-
-* [React - Redux Complete Course](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAvcGzTEAyPSOqgUQA08rNB) - Stack Learner
-* [Understand ReactJS Advanced Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBaeF3qUyvr2AxoXGwDd5cx) - Stack Learner
-* [Understand ReactJS Core Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBANld2gDEE6_0G886zavUs) - Stack Learner
-* [React JS Tutorial Bangla Series for Beginners](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9M6HVQv7a36cp8LKzyHIePr) - Learn with Sumit
-
-
-### Svelte
-
-* [Svelte 3: The Game Changer (Bangla Crash Course)](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDJOOYnZxK-fbKxjxFHfc-H) - Stack Learner
-
-
-### TypeScript
-
-* [TypeScript: All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCzmP8m2l_h8PnVTSvcnJWO) - Stack Learner
-
-
-### Visual Studio Code
-
-* [VSCode Complete Tutorial Series | VSCode টিউটোরিয়াল সিরিজ](https://www.youtube.com/playlist?list=PL_XxuZqN0xVB_lroSm_xvTqvVBCpR4PQE) - Stack Learner
-
-
-
-
-
-
--- a/books/free-programming-books-fa_IR.md
+++ b/books/free-programming-books-fa_IR.md
@ -43,7 +43,8 @@

 ### JavaScript

-* مارین هاوربک - [جاوااسکریپت شیوا](http://eloquentjs.ir) (HTML)
+* [جاوااسکریپت شیوا](http://eloquentjs.ir) - مارین هاوربک, مهران عفتی (HTML)
+* [ریکت جی اس](https://github.com/reactjs/fa.reactjs.org)
 * [یادگیری اصولی جاوااسکریپت](https://github.com/Mariotek/BetterUnderstandingOfJavascript)


--- a/books/free-programming-books-fi.md
+++ b/books/free-programming-books-fi.md
@ -39,7 +39,7 @@
 * [C++](https://fi.wikibooks.org/wiki/C%2B%2B) - Wikikirjasto
 * [C++-ohjelmointi](https://www.ohjelmointiputka.net/oppaat/opas.php?tunnus=cpp_ohj_01)
 * [C++-opas](http://www.nic.funet.fi/c++opas/) - Aleksi Kallio
-* [Olioiden ohjelmointi C++:lla](http://www.cs.tut.fi/~oliot/kirja/olioiden-ohjelmointi-uusin.pdf) - Matti Rintala, Jyke Jokinen (PDF)
+* [Olioiden ohjelmointi C++:lla](https://web.archive.org/web/20170918213135/http://www.cs.tut.fi/~oliot/kirja/olioiden-ohjelmointi-uusin.pdf) - Matti Rintala, Jyke Jokinen (PDF) *(:card_file_box: archived)*


 ### Java
--- a/books/free-programming-books-fr.md
+++ b/books/free-programming-books-fr.md
@ -11,7 +11,7 @@
 * [Assembleur](#assembleur)
 * [Bash / Shell](#bash--shell)
 * [C / C++](#c--c)
-* [Caml](#caml)
+* [Caml / OCaml](#caml--ocaml)
 * [Coq](#coq)
 * [CSS](#css)
 * [Fortran](#fortran)
@ -104,9 +104,11 @@
 * [La programmation Shell](https://frederic-lang.developpez.com/tutoriels/linux/prog-shell/) - Frederic Lang, Idriss Neumann


-### Caml
+### Caml / OCaml

-* [Le language Caml](http://caml.inria.fr)
+* [Développement d'applications avec Objective Caml](https://www-apr.lip6.fr/~chaillou/Public/DA-OCAML) - Emmanuel Chailloux, Pascal Manoury, Bruno Pagano
+* [Le langage Caml](https://caml.inria.fr/pub/distrib/books/llc.pdf) - Pierre Weis, Xavier Leroy (PDF)
+* [Programmation du système Unix en Objective Caml](https://web.archive.org/web/20211115022546/http://gallium.inria.fr/~remy/camlunix/) - Xavier Leroy, Didier Rémy


 ### C / C++
@ -249,7 +251,7 @@

 ### Python

-* [Appendre à programmer avec Python](http://inforef.be/swi/python.htm) - Gerard Swinnen
+* [Apprendre à programmer avec Python](http://inforef.be/swi/python.htm) - Gerard Swinnen
 * [Introduction à la programmation](https://self-learning.info.ucl.ac.be/index/info1-exercises) (Inscription gratuite sur le site. Pour réaliser les exercices sur INGInious.org, créez-vous un compte gratuitement et lier ensuite votre compte self-learning à votre compte INGInious. )
 * [Le guide de l’auto-stoppeur pour Python!](https://python-guide-fr.readthedocs.io/fr/latest/) - Kenneth Reitz
 * [Python](http://www.lincoste.com/ebooks/pdf/informatique/python.pdf) - Guido Van Rossum (PDF)
--- a/books/free-programming-books-id.md
+++ b/books/free-programming-books-id.md
@ -107,7 +107,7 @@

 ### MySQL

-* [3 Days With Mysql For Your Application: Mysql Untuk Pemula](https://play.google.com/store/books/details/Onesinus_Saut_Parulian_3_Days_With_Mysql_For_Your?id=MbdTDwAAQBAJ) - Onesinus Saut Parulian, Google Play Books
+* [3 Days With Mysql For Your Application: Mysql Untuk Pemula](https://play.google.com/store/books/details/Onesinus_Saut_Parulian_3_Days_With_Mysql_For_Your?id=MbdTDwAAQBAJ) - Onesinus Saut Parulian *(Membutuhkan akun Google Play Books atau email yang valid)*
 * [Tutorial MySQL untuk Pemula Hingga Mahir](https://umardanny.com/tutorial-mysql-untuk-pemula-hingga-mahir-ebook-download-pdf/)


@ -115,7 +115,7 @@

 * [Belajar Dengan Jenius Amazon Web Service & Node.js](https://github.com/gungunfebrianza/Belajar-Dengan-Jenius-Node.js/releases/download/1.2/Belajar.Dengan.Jenius.Javascript.Node.pdf) - Gun Gun Febrianza (PDF)
 * [Belajar Node.js](http://idjs.github.io/belajar-nodejs/)
-* [Node.js Handbook: Berbahasa Indonesia](https://play.google.com/store/books/details/Bona_Tua_Node_js_Handbook?id=9WhZDwAAQBAJ) - Bona Tua, Google Play Books (*account required*)
+* [Node.js Handbook: Berbahasa Indonesia](https://play.google.com/store/books/details/Bona_Tua_Node_js_Handbook?id=9WhZDwAAQBAJ) - Bona Tua *(Membutuhkan akun Google Play Books atau email yang valid)*


 ### NoSQL
@ -151,7 +151,7 @@

 * [Belajar Python](http://www.belajarpython.com)
 * [Dasar Pemrograman Python](https://www.pythonindo.com/tutorial-python-dasar/)
-* [Dasar Pengenalan Pemrograman Python](https://play.google.com/store/books/details/Rolly_Maulana_Awangga_Dasar_dasar_Python?id=YpzDDwAAQBAJ) - Rolly Maulana AwanggaRayhan, Google Play Books (account required)
+* [Dasar Pengenalan Pemrograman Python](https://play.google.com/store/books/details/Rolly_Maulana_Awangga_Dasar_dasar_Python?id=YpzDDwAAQBAJ) - Rolly Maulana AwanggaRayhan *(Membutuhkan akun Google Play Books atau email yang valid)*
 * [Database PostgreSQL, Pemrograman Python, dan SMS Gateway](http://rab.co.id/files/python/bukupython2.pdf.gz) - (PDF)
 * [Kursus Singkat Machine Learning dengan TensorFlow API](https://developers.google.com/machine-learning/crash-course?hl=id)
 * [Tutorial Python](https://docs.python.org/id/3.8/tutorial/)
@ -187,5 +187,5 @@

 ### Vue

+* [Belajar Vue.js](https://variancode.com/belajar-vue-js/) - Varian Hermianto
 * [Dokumentasi Vue Bahasa Indonesia](https://github.com/vuejs-id/docs)
-
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@ -268,11 +268,13 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE

 ### APL

-* [A Practical Introduction to APL1 & APL2](http://robertson.uk.net) - Graeme Donald Robertson (PDF)
-* [A Practical Introduction to APL3 & APL4](http://robertson.uk.net) - Graeme Donald Robertson (PDF)
+* [A Practical Introduction to APL1 & APL2](http://robertson.uk.net/Files/APL1&2.pdf) - Graeme Donald Robertson (PDF)
+* [A Practical Introduction to APL3 & APL4](http://robertson.uk.net/Files/APL3&4.pdf) - Graeme Donald Robertson (PDF)
+* [APL2 at a glance](https://ia801009.us.archive.org/28/items/apl-2-at-a-glance-brown-pakin-polivka/APL2_at_a_Glance_-_Brown_Pakin_Polivka.pdf) - James A. Brown, Sandra Pakin, Raymond P. Polivka - 1988 (PDF) *(:card_file_box: archived)*
 * [Introduction to College Mathematics with A Programming Language (1978)](http://www.softwarepreservation.org/projects/apl/Books/CollegeMathematicswithAPL) - E. J. LeCuyer (PDF)
-* [Learning APL](https://xpqz.github.io/learnapl/intro.html) - Stefan Kruger (HTML,PDF,IPYNB)
-* [Mastering Dyalog APL](http://www.dyalog.com/mastering-dyalog-apl.htm) (PDF)
+* [Learning APL](https://xpqz.github.io/learnapl) - Stefan Kruger (HTML,PDF,IPYNB)
+* [Mastering Dyalog APL](http://www.dyalog.com/mastering-dyalog-apl.htm) (PDF) (HTML,IPYNB :construction: *in process*)
+* [Reinforcement Learning From The Ground Up](https://romilly.github.io/o-x-o) - Romilly Cocking (PDF,HTML,IPYNB) (:construction: *in process*)


 ### App Inventor
@ -318,13 +320,14 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE

 ### Assembly Language

+* [A fundamental introduction to x86 assembly prorgamming](https://www.nayuki.io/page/a-fundamental-introduction-to-x86-assembly-programming) - Project Nayuki (HTML)
 * [ARM Assembly Language Programming](http://www.rigwit.co.uk/ARMBook/ARMBook.pdf) - Peter Knaggs (PDF) (:construction: *in process*)
 * [Assemblers And Loaders (1993)](http://www.davidsalomon.name/assem.advertis/asl.pdf) - David Salomon (PDF)
 * [Assembly Language Succinctly](https://www.syncfusion.com/succinctly-free-ebooks/assemblylanguage) - Christopher Rose, Syncfusion Inc. (HTML, PDF, EPUB, Kindle)
 * [PC Assembly Language](http://pacman128.github.io/pcasm/) - P. A. Carter
-* [Professional Assembly Language](https://web.archive.org/web/20170329045538/http://blog.hit.edu.cn:80/jsx/upload/AT%EF%BC%86TAssemblyLanguage.pdf) (PDF)
 * [Programming from the Ground Up](https://download-mirror.savannah.gnu.org/releases/pgubook/ProgrammingGroundUp-1-0-booksize.pdf) - Jonathan Bartlett (PDF)
 * [Ralf Brown's Interrupt List](http://www.ctyme.com/rbrown.htm)
+* [Run Down On x86 Intel Assembly Course](https://github.com/Ret2LC/x86-assembly) - Ret2LC
 * [Software optimization resources](http://www.agner.org/optimize/) - A. Fog
 * [The Art of Assembly Language (2003)](https://web.archive.org/web/20120525102637/http://maven.smith.edu/~thiebaut/ArtOfAssembly/artofasm.html) - Randall Hyde (PDF)
 * [WebAssembly friendly programming with C/C++](https://github.com/3dgen/cppwasm-book/tree/master/en) - Ending, Chai Shushan, Yushih (HTML, [:package: examples](https://github.com/3dgen/cppwasm-book/tree/master/examples))
@ -427,6 +430,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Build Your Own Lisp](http://www.buildyourownlisp.com) - Daniel Holden
 * [C Elements of Style](http://www.oualline.com/books.free/style/) - Steve Oualline
 * [C for Python Programmers](http://www.cburch.com/books/cpy/) - Carl Burch
+* [C Internals](https://www.avabodh.com/cin/cin.html) - Rajeev Kumar (HTML)
 * [C Notes for Professionals](https://goalkicker.com/CBook) - Compiled from StackOverflow Documentation (PDF)
 * [C Programming](https://en.wikibooks.org/wiki/Programming%3AC) - Wikibooks
 * [C Programming Boot Camp - Paul Gribble](https://gribblelab.org/teaching/CBootCamp/)
@ -561,7 +565,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [COBOL Programming Fundamental](http://yusman.staff.gunadarma.ac.id/Downloads/files/33460/COBOL_Programming_Fundamental.pdf) (PDF)
 * [Enterprise COBOL for z/OS documentation library](http://www-01.ibm.com/support/docview.wss?uid=swg27036733)
 * [ILE COBOL Programmer's Guide](https://www.ibm.com/docs/de/ssw_ibm_i_74/pdf/sc092539.pdf) (PDF)
-* [Introduction to the COBOL Language](https://supportline.microfocus.com/documentation/books/oc41books/lrintr.htm)
+* [Micro Focus: OO Programming with Object COBOL for UNIX (1999)](https://www.microfocus.com/documentation/object-cobol/oc41books/oppubb.htm) - MERANT International Ltd. (HTML)
 * [OpenCOBOL 1.1 - Programmer's Guide](http://open-cobol.sourceforge.net/guides/OpenCOBOL%20Programmers%20Guide.pdf) (PDF)


@ -657,6 +661,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Getting Started Guide](http://elixir-lang.org/getting-started/introduction.html) (HTML) [(PDF, MOBI, EPUB)](https://github.com/potatogopher/elixir-getting-started)
 * [Joy of Elixir](https://joyofelixir.com) - Ryan Bigg (HTML) - [Source](https://github.com/radar/joyofelixir) (:construction: *in process*)
 * [Learning Elixir](http://learningelixir.joekain.com) - Joseph Kain Blog (HTML)
+* [Learning the Elixir Language](https://riptutorial.com/Download/elixir-language.pdf) - Compiled from StackOverflow Documentation (PDF) 
 * [The Ultimate Guide To Elixir For Object-Oriented Programmers](http://www.binarywebpark.com/ultimate-guide-elixir-object-oriented-programmers) - Bruce Park (HTML)


@ -760,6 +765,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE

 ### Fortran

+* [Exploring Modern Fortran Basics](https://www.manning.com/books/exploring-modern-fortran-basics) - Milan Curcic
 * [Fortran 90 Tutorial](http://www.cs.mtu.edu/~shene/COURSES/cs201/NOTES/fortran.html) - C.-K. Shene at Michigan Technological University (HTML)
 * [Fortran 90 Tutorial](https://web.stanford.edu/class/me200c/tutorial_90/) - Sarah T. Whitlock, Paul H. Hargrove at Stanford University (HTML)
 * [Fortran information & resources](https://www.fortranplus.co.uk/fortran-information/) - fortranplus.co.uk (HTML)
@ -795,6 +801,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Git Pocket Guide](https://www.oreilly.com/library/view/git-pocket-guide/9781449327507) - Richard E. Silverman
 * [Git Reference](https://web.archive.org/web/20170602211147/http://gitref.org/)
 * [Git Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/git) (PDF, Kindle) (email address *requested*, not required)
+* [Git Tutorial](https://www.tutorialspoint.com/git/) - Tutorials Point Ltd. (HTML)
 * [Git-Tutorial For-Beginners](https://product.hubspot.com/blog/git-and-github-tutorial-for-beginners) - HubSpot Product Team
 * [Git Workflows](https://web.archive.org/web/20210910133251/http://documentup.com/skwp/git-workflows-book) - Yan Pritzker *(:card_file_box: archived)*
 * [Happy Git and GitHub for the useR](https://happygitwithr.com) - Jenny Bryan
@ -2218,6 +2225,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [A Pamphlet Against R. Computational Intelligence in Guile Scheme](https://panicz.github.io/pamphlet/)
 * [An Introduction to Scheme and its Implementation](http://www.cs.rpi.edu/academics/courses/fall00/ai/scheme/reference/schintro-v14/schintro_toc.html)
 * [Concrete Abstractions: An Introduction to Computer Science Using Scheme](https://gustavus.edu/+max/concrete-abstractions.html) - M. Hailperin, B. Kaiser, K. Knight
+* [Scheme 9 from Empty Space - First edition (2007)](https://unglue.it/work/506723/) - Nils M. Holm (PDF)
 * [Scheme Tutorial](http://www.cs.hut.fi/Studies/T-93.210/schemetutorial/)
 * [Simply Scheme: Introducing Computer Science](http://www.cs.berkeley.edu/~bh/ss-toc2.html) - B. Harvey, M. Wright
 * [Teach Yourself Scheme in Fixnum Days](https://ds26gte.github.io/tyscheme/index-Z-H-1.html)
@ -2258,6 +2266,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Enterprise Pharo: a Web Perspective](http://books.pharo.org/enterprise-pharo/)
 * [Numerical Methods with Pharo](http://books.pharo.org/numerical-methods/) - Didier Besset, Stéphane Ducasse, Serge Stinckwich
 * [Pharo by Example](http://books.pharo.org/pharo-by-example/) - Andrew P. Black et al. (Smalltalk Implementation and IDE)
+* [Squeak by Example](https://github.com/hpi-swa-lab/SqueakByExample-english)
 * [Stef's Free Online Smalltalk Books](http://stephane.ducasse.free.fr/FreeBooks.html) (meta-list)


@ -2285,6 +2294,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [SQL For Web Nerds](http://philip.greenspun.com/sql/)
 * [SQL Notes for Professionals](http://goalkicker.com/SQLBook/) - Compiled from StackOverflow Documentation (PDF)
 * [SQL Queries Succinctly](https://www.syncfusion.com/ebooks/sql_queries_succinctly) - Nick Harrison
+* [SQLite Tutorial](https://www.tutorialspoint.com/sqlite)
 * [Use The Index, Luke!: A Guide To SQL Database Performance](http://use-the-index-luke.com)


--- a/books/free-programming-books-subjects.md
+++ b/books/free-programming-books-subjects.md
@ -1,7 +1,7 @@
 ## BY SUBJECT

 This list, organized by subject, is for books that cover a programming-related subject in a programming-language agnostic way.  
-Books that cover a specific programming language can be found in the  [BY PROGRAMMING LANGUAGE file](free-programming-books-langs.md) list.
+Books that cover a specific programming language can be found in the  [BY PROGRAMMING LANGUAGE](free-programming-books-langs.md) list.


 ### Index
@ -114,7 +114,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Open Data Structures: An Introduction](http://opendatastructures.org) - Pat Morin
 * [Planning Algorithms](http://planning.cs.uiuc.edu)
 * [Problems on Algorithms (Second Edition)](http://ianparberry.com/books/free/license.html) - Ian Parberry (use form at bottom of license)
-* [Purely Functional Data Structures (1996)](http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf) - Chris Okasaki (PDF)
+* [Purely Functional Data Structures (1996)](https://web.archive.org/web/20210917054102/http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf) - Chris Okasaki (PDF) *(:card_file_box: archived)*
 * [Sequential and parallel sorting algorithms](http://www.inf.fh-flensburg.de/lang/algorithmen/sortieren/algoen.htm)
 * [Text Algorithms](http://igm.univ-mlv.fr/~mac/REC/text-algorithms.pdf) (PDF)
 * [The Algorithm Design Manual](http://www8.cs.umu.se/kurser/TDBAfl/VT06/algorithms/BOOK/BOOK/BOOK.HTM)
@ -322,7 +322,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [A Brief Introduction to Neural Networks](http://www.dkriesel.com/en/science/neural_networks)
 * [A Comprehensive Guide to Machine Learning](https://www.eecs189.org/static/resources/comprehensive-guide.pdf) - Soroush Nasiriany, Garrett Thomas, William Wang, Alex Yang (PDF)
 * [A Course in Machine Learning](http://ciml.info/dl/v0_9/ciml-v0_9-all.pdf) (PDF)
-* [A First Encounter with Machine Learning](https://www.ics.uci.edu/~welling/teaching/ICS273Afall11/IntroMLBook.pdf) (PDF)
+* [A First Encounter with Machine Learning](https://web.archive.org/web/20210420163002/https://www.ics.uci.edu/~welling/teaching/ICS273Afall11/IntroMLBook.pdf) - Max Welling (PDF) *(:card_file_box: archived)*
 * [A Selective Overview of Deep Learning](https://arxiv.org/abs/1904.05526) - Fan, Ma, and Zhong (PDF)
 * [Algorithms for Reinforcement Learning](https://sites.ualberta.ca/~szepesva/papers/RLAlgsInMDPs.pdf) - Csaba Szepesvári (PDF)
 * [An Introduction to Statistical Learning](https://web.stanford.edu/~hastie/ISLR2/ISLRv2_website.pdf) - Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani (PDF)
@ -334,7 +334,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Dive into Deep Learning](http://d2l.ai)
 * [Explorations in Parallel Distributed Processing: A Handbook of Models, Programs, and Exercises](https://web.stanford.edu/group/pdplab/pdphandbook) - James L. McClelland
 * [Foundations of Machine Learning, Second Edition](https://mitpress.ublish.com/ereader/7093/?preview=#page/Cover) - Mehryar Mohri, Afshin Rostamizadeh, Ameet Talwalkar
-* [Free and Open Machine Learning](https://freeandopenmachinelearning.readthedocs.io/en/latest/index.html) - Maikel Mardjan
+* [Free and Open Machine Learning](https://nocomplexity.com/documents/fossml/) - Maikel Mardjan (HTML)
 * [Gaussian Processes for Machine Learning](http://www.gaussianprocess.org/gpml/)
 * [IBM Machine Learning for Dummies](https://www.ibm.com/downloads/cas/GB8ZMQZ3) - Judith Hurwitz, Daniel Kirsch
 * [Information Theory, Inference, and Learning Algorithms](http://www.inference.phy.cam.ac.uk/itila/)
@ -352,6 +352,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Mathematics for Machine Learning](https://gwthomas.github.io/docs/math4ml.pdf) - Garrett Thomas (PDF)
 * [Mathematics for Machine Learning](https://mml-book.github.io) - Marc Peter Deisenroth, A Aldo Faisal, and Cheng Soon Ong
 * [Neural Networks and Deep Learning](http://neuralnetworksanddeeplearning.com)
+* [Practitioners guide to MLOps](https://services.google.com/fh/files/misc/practitioners_guide_to_mlops_whitepaper.pdf) - Khalid Samala, Jarek Kazmierczak, Donna Schut (PDF)
 * [Probabilistic Models in the Study of Language](http://idiom.ucsd.edu/~rlevy/pmsl_textbook/text.html) (Draft, with R code)
 * [Python Machine Learning Projects](https://www.digitalocean.com/community/books/python-machine-learning-projects-a-digitalocean-ebook) - Lisa Tagliaferri, Brian Boucheron, Michelle Morales, Ellie Birkbeck, Alvin Wan (PDF, EPUB, Kindle)
 * [Reinforcement Learning: An Introduction](http://incompleteideas.net/book/RLbook2020.pdf) - Richard S. Sutton, Andrew G. Barto (PDF)
@ -359,7 +360,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [The Elements of Statistical Learning](https://web.stanford.edu/~hastie/ElemStatLearn/) - Trevor Hastie, Robert Tibshirani, and Jerome Friedman
 * [The LION Way: Machine Learning plus Intelligent Optimization](https://intelligent-optimization.org/LIONbook/lionbook_3v0.pdf) - Roberto Battiti, Mauro Brunato (PDF)
 * [The Mechanics of Machine Learning](https://mlbook.explained.ai) - Terence Parr and Jeremy Howard
-* [The Python Game Book](http://thepythongamebook.com/en%3Astart)
+* [The Python Game Book](https://web.archive.org/web/20210308080726/https://thepythongamebook.com/en%3Astart) - Horst Jens *(:card_file_box: archived)*
 * [Top 10 Machine Learning Algorithms Every Engineer Should Know](https://www.dezyre.com/article/top-10-machine-learning-algorithms/202) - Binny Mathews and Omair Aasim
 * [Understanding Machine Learning: From Theory to Algorithms](https://www.cs.huji.ac.il/~shais/UnderstandingMachineLearning) - Shai Shalev-Shwartz, Shai Ben-David

@ -407,7 +408,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Complex Analysis](https://people.math.gatech.edu/~cain/winter99/complex.html) - George Cain
 * [Computational and Inferential Thinking. The Foundations of Data Science](https://www.inferentialthinking.com)
 * [Computational Geometry](http://web.mit.edu/hyperbook/Patrikalakis-Maekawa-Cho/)
-* [Computational Mathematics with SageMath](http://sagebook.gforge.inria.fr/english.html) - Paul Zimmermann et al.
+* [Computational Mathematics with SageMath](https://www.sagemath.org/sagebook/) - Paul Zimmermann, Alexandre Casamayou, Nathann Cohen, Guillaume Connan, et al. (PDF)
 * [Concepts & Applications of Inferential Statistics](http://vassarstats.net/textbook/)
 * [Convex Optimization](https://web.stanford.edu/~boyd/cvxbook) - Stephen Boyd and Lieven Vandenberghe
 * [Coordinate Geometry (1911)](http://djm.cc/library/Coordinate_Geometry_Fine_Thompson_edited03.pdf) - Henry Buchard Fine and Henry Dallas Thompson (PDF)
@ -437,8 +438,8 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Kalman and Bayesian Filters in Python](https://github.com/rlabbe/Kalman-and-Bayesian-Filters-in-Python)
 * [Knapsack Problems - Algorithms and Computer Implementations](http://www.or.deis.unibo.it/knapsack.html) - Silvano Martello and Paolo Toth
 * [Lecture Notes of Linear Algebra](http://home.iitk.ac.in/~psraj/mth102/lecture_notes.html) - Dr. P. Shunmugaraj, IIT Kanpur (PDF)
+* [Lecture Notes on Linear Algebra](https://home.iitk.ac.in/~arlal/book/LA_Solution_Dec20.pdf) - Dr. Arbind K Lal, Sukant Pati (PDF) (:construction: *in process*)
 * [Lies, Damned Lies, or Statistics: How to Tell the Truth with Statistics](https://www.poritz.net/jonathan/share/ldlos.pdf) - Jonathan A. Poritz (PDF)
-* [Linear Algebra](http://home.iitk.ac.in/~arlal/book/la.pdf) - Dr. Arbind K Lal, Sukant Pati (PDF) (:construction: *in process*)
 * [Linear Algebra](https://www.math.ucdavis.edu/~linear/linear-guest.pdf) (PDF)
 * [Linear Algebra](http://joshua.smcvt.edu/linearalgebra/) - Jim Hefferon
 * [Linear Algebra Done Wrong](https://www.math.brown.edu/streil/papers/LADW/LADW.html) - Sergei Treil
@ -456,7 +457,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Non-Uniform Random Variate Generation](http://luc.devroye.org/rnbookindex.html) - Luc Devroye (PDF)
 * [Notes on Diffy Qs](https://www.jirka.org/diffyqs/) - Jiří Lebl
 * [Number Theory](https://github.com/holdenlee/number-theory) - Holden Lee MIT
-* [Number Theory: In Context and Interactive](http://math.gordon.edu/ntic/) - Karl-Dieter Crisman
+* [Number Theory: In Context and Interactive](https://web.archive.org/web/20210711231452/https://math.gordon.edu/ntic/) - Karl-Dieter Crisman
 * [Odds and Ends: Introducing Probability & Decision with a Visual Emphasis](https://jonathanweisberg.org/vip/) - Jonathan Weisberg
 * [Online Statistics Education](http://onlinestatbook.com) - David Lane
 * [OpenIntro Statistics](https://www.openintro.org/stat/textbook.php) - David M. Diez, Christopher D. Barr, Mine Çetinkaya-Rundel
@ -489,6 +490,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA

 * [A Mathematical Theory of Communication](https://archive.org/details/bstj27-4-623) - Claude E.Shannon
 * [Discrete Structures for Computer Science: Counting, Recursion, and Probability](http://cglab.ca/~michiel/DiscreteStructures/) - Michiel Smid
+* [Exploring Math for Programmers and Data Scientists](https://freecontent.manning.com/free-ebook-exploring-math-for-programmers-and-data-scientists/) - Paul Orland


 ### Misc
@ -514,20 +516,19 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Digital Signal Processing in Python](https://greenteapress.com/wp/think-dsp) - Allen B. Downey
 * ["DYNAMIC LINKED LIBRARIES": Paradigms of the GPL license in contemporary software](http://www.lulu.com/shop/http://www.lulu.com/shop/luis-enr%C3%ADquez-a/dynamic-linked-libraries-paradigms-of-the-gpl-license-in-contemporary-software/ebook/product-21419788.html) - Luis A. Enríquez
 * [Essential Image Optimization](https://images.guide) - Addy Osmani
-* [Foundations of Programming](http://openmymind.net/FoundationsOfProgramming.pdf) (PDF)
+* [Foundations of Programming](https://openmymind.net/FoundationsOfProgramming.pdf) - Karl Seguin (PDF)
 * [Getting Real](https://basecamp.com/books/getting-real) - Basecamp, 37signals ([HTML](https://basecamp.com/gettingreal), [PDF](https://basecamp.com/gettingreal/getting-real.pdf))
 * [Google Maps API Succinctly](https://www.syncfusion.com/ebooks/google_maps_api_succinctly) - Mark Lewin
 * [Hacknot: Essays on Software Development](http://www.lulu.com/shop/ed-johnson/hacknot-essays-on-software-development/ebook/product-17544641.html) - Ed Johnson
 * [Hello SDL](https://lazyfoo.net/tutorials/SDL) - Lazy Foo' Productions
 * [High-Performance Scientific Computing](https://andreask.cs.illinois.edu/Teaching/HPCFall2012) (class lectures and slides)
-* [Holm School (You Might Learn Something) - How to Teach Yourself To Be A Computer Scientist for Hamiltons a Month](https://ryheimat.github.io/holm-school) - Ryhen Holm
 * [HoloLens Succinctly](https://www.syncfusion.com/ebooks/hololens_succinctly) - Lars Klint
 * [How Computers Work](http://www.fastchip.net/howcomputerswork/p1.html) - R. Young
 * [How to Become a Programmer](http://softwarebyrob.wpengine.netdna-cdn.com/assets/Software_by_Rob%20_How_to_Become_a%20_Programmer_1.0.pdf) (PDF)
 * [How To Manage Remote Servers with Ansible](https://www.digitalocean.com/community/books/how-to-manage-remote-servers-with-ansible-ebook) - Erika Heidi (PDF, EPUB)
 * [How to Think Like a Computer Scientist](http://openbookproject.net/thinkcs/) - Peter Wentworth, Jeffrey Elkner, Allen B. Downey, and Chris Meyers
 * [Image Processing in C: Analyzing and Enhancing Digital Images](http://homepages.inf.ed.ac.uk/rbf/BOOKS/PHILLIPS/) - Dwayne Phillips
-* [Information Technology and the Networked Economy](http://florida.theorangegrove.org/og/file/49843a6a-9a9d-4bad-b4d4-d053f9cdf73e/1/InfoTechNetworkedEconomy.pdf) (PDF)
+* [Information Technology and the Networked Economy](https://web.archive.org/web/20200731035935/https://florida.theorangegrove.org/og/file/49843a6a-9a9d-4bad-b4d4-d053f9cdf73e/1/InfoTechNetworkedEconomy.pdf) - Patrick McKeown (PDF) *(:card_file_box: archived)*
 * [Introduction to Scientific Programming in C++ and Fortran](https://web.corral.tacc.utexas.edu/CompEdu/pdf/isp/EijkhoutIntroSciProgramming-book.pdf) - Victor Eijkhout (PDF)
 * [IRPF90 Fortran code generator](https://www.gitbook.com/book/scemama/irpf90/details) - Anthony Scemama
 * [Learn Programming](https://progbook.org) - Antti Salonen
@ -552,7 +553,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Record-Playback Test Automation: Sahi & Selenium IDE: Critical Evaluation of Record-Playback Automation Tools](https://leanpub.com/manualToAutomatedWithSeleniumIDEAndSahi) - Shashikant Jagtap  *(Leanpub account or valid email requested)*
 * [Scientific Programming and Computer Architecture](https://divakarvi.github.io/bk-spca/spca.html) - Divakar Viswanath
 * [Signal Computing: Digital Signals in the Software Domain](http://faculty.washington.edu/stiber/pubs/Signal-Computing/Signal%20Computing.pdf) - Michael Stiber, Bilin Zhang Stiber, Eric C. Larson (PDF)
-* [Small Memory Software](http://www.smallmemory.com/book.html)
+* [Small Memory Software](https://smallmemory.charlesweir.com/book.html) - Charles Weir, James Noble (HTML)
 * [Web Almanac](https://almanac.httparchive.org/static/pdfs/web_almanac_2019_en.pdf) (PDF)
 * [Writing Native Mobile Apps in a Functional Language Succinctly](https://www.syncfusion.com/ebooks/writing_native_mobile_apps_in_a_functional_language_succinctly) - Vassili Kaplan

@ -726,8 +727,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [How to Write Unmaintainable Code](http://mindprod.com/jgloss/unmain.html)
 * [Kanban and Scrum - making the most of both](http://www.infoq.com/minibooks/kanban-scrum-minibook)
 * [Kanban for skeptics](https://leanpub.com/kanbanforskeptics) - Nick Oostvogels  *(Leanpub account or valid email requested)*
-* [Microservices AntiPatterns and Pitfalls](https://www.oreilly.com/programming/free/files/microservices-antipatterns-and-pitfalls.pdf) (PDF)
-* [Microservices vs. Service-Oriented Architecture](https://www.oreilly.com/programming/free/files/microservices-vs-service-oriented-architecture.pdf) (PDF)
+* [Microservices AntiPatterns and Pitfalls](http://web.archive.org/web/20210205164251/https://www.oreilly.com/programming/free/files/microservices-antipatterns-and-pitfalls.pdf) - Mark Richards (PDF) *(:card_file_box: archived)*
+* [Microservices vs. Service-Oriented Architecture](https://www.oreilly.com/radar/microservices-vs-service-oriented-architecture/) - Mark Richards (HTML)
 * [Migrating to Cloud-Native Application Architectures](https://developers.redhat.com/books/migrating-microservice-databases-relational-monolith-distributed-data/) (email address *requested*) (PDF)
 * [Naked objects](http://downloads.nakedobjects.net/resources/Pawson%20thesis.pdf) - Richard Pawson (PDF)
 * [OAuth - The Big Picture](https://pages.apigee.com/oauth-big-picture-ebook.html) (email address *requested*)
--- a/casts/free-podcasts-screencasts-en.md
+++ b/casts/free-podcasts-screencasts-en.md
@ -147,7 +147,6 @@
 * [Emacs Rocks!](http://emacsrocks.com) (screencast)
 * [Free screencasts about the text editor Vim](http://vimcasts.org) (screencast)
 * [PHPStorm Tips & Tricks](https://www.youtube.com/playlist?list=PLk9WlAgeZoTfHdJUv75-5grVQf4ijIrzw) - Christoph Rumpel (screencast)
-* [The Vim Blog](https://soundcloud.com/thevimcast) (podcast)
 * [vim Hacking](https://www.youtube.com/playlist?list=PL-p5XmQHB_JSTaEPygu1DZjuFfb704Uv7) (screencast)


@ -196,6 +195,19 @@
 * [The EmberMap Podcast](https://embermap.com/podcast) - Sam Selikoff and Ryan Toronto (podcast)


+#### Machine Learning
+
+* [Concerning AI](https://concerning.ai) - Brandon Sanders, Ted Sarvata (podcast)
+* [Emerj: The AI in Business Podcast](https://emerj.com/artificial-intelligence-podcast/) - Daniel Faggella (podcast)
+* [Emerj: The AI in Financial Services Podcast](https://emerj.com/ai-in-financial-services-podcast/) - Daniel Faggella (podcast)
+* [High-performance computing and AI podcast](https://developer.ibm.com/podcasts/high-performance-computing-and-ai-podcast/) - IBM (podcast)
+* [Learning Machines 101](http://www.learningmachines101.com) - Richard M. Golden (podcast)
+* [Machine learning](https://anchor.fm/david-nishimoto) - David Nishimoto (podcast)
+* [Talking Machines](http://www.thetalkingmachines.com) - Katherine Gorman, Neil Lawrence (podcast)
+* [The AI Podcast](https://blogs.nvidia.com/ai-podcast/) - NVIDIA, Noah Kravitz (podcast)
+* [TWIML AI Podcast](https://twimlai.com/shows/) - Sam Charrington (podcast)
+
+
 #### Node.js

 * [Node University](https://nodeuniversity.simplecast.fm) - Azat Mardan (podcast)
@ -227,6 +239,8 @@
 ### Language Agnostic

 * [/dev/hell](http://devhell.info) (podcast)
+* [ADSP: The Podcast](https://adspthepodcast.com) (podcast)
+* [Array Cast](https://arraycast.com) (podcast)
 * [Arrested DevOps](https://www.arresteddevops.com) (podcast)
 * [baseCS](https://www.codenewbie.org/basecs) (podcast based on [a series of posts on medium](https://medium.com/basecs))
 * [Between \| Screens Podcast](https://soundcloud.com/between-screens) (podcast)
--- a/casts/free-podcasts-screencasts-es.md
+++ b/casts/free-podcasts-screencasts-es.md
@ -11,66 +11,66 @@

 ### Ciencia de Datos

-* [BigDateame](https://bigdateame.com) (podcast)
-* [DataFuturologyEspanol](https://www.datafuturology.com/data-futurology-espanol) (podcast) *(cuenta requerida)*
-* [DataLatam](http://www.datalatam.com) (podcast)
-* [SoyData](https://us.ivoox.com/es/podcast-soydata-ciencia-datos-a-tu_sq_f1414925_1.html) (podcast)
+* [BigDateame](https://bigdateame.com) - Iker Gómez García (podcast)
+* [DataFuturologyEspanol](https://www.datafuturology.com/data-futurology-espanol) - Felipe Flores (podcast)
+* [DataLatam](http://www.datalatam.com) - Diego May, Frans van Dunné (podcast)
+* [SoyData](https://www.ivoox.com/podcast-soydata-ciencia-datos-a-tu_sq_f1414925_1.html) (podcast)


 ### Desarrollo Web

-* [Codalot Podcast](https://www.ivoox.com/escuchar-codalot-podcast_nq_747399_1.html) (podcast)
+* [Codalot Podcast](https://anchor.fm/codalot) - Armando Picón (podcast)
 * [Hablando.js](https://anchor.fm/carlosazaustre) - Carlos Azaustre (podcast)
-* [La Web es la Plataforma](https://anchor.fm/the-web-is-the-platform) (podcast)
-* [República Web](https://republicaweb.es) (podcast)
-* [Web Reactiva](https://www.danielprimo.io/podcast) (podcast)
+* [La Web es la Plataforma](https://anchor.fm/the-web-is-the-platform) - Diego de Granda, Jorge del Casar (podcast)
+* [República Web](https://republicaweb.es) - Javier Archeni, Andros Fenollosa, David Vaquero, Antony Goetzschel, Néstor Angulo de Ugarte (podcast)
+* [Web Reactiva](https://www.danielprimo.io/podcast) - Daniel Primo (podcast)


 ### Frontend

-* [Diseño Web](https://pampua.es/podcast) (podcast)
-* [Midu Dev](https://midu.dev/podcast) (podcast) (Última Actualización, Marzo 2020)
+* [Diseño Web](https://pampua.es/podcast) - Ramón Prats (podcast)
+* [Midu Dev](https://midu.dev/podcast) - Miguel Ángel Durán (podcast) *(Última Actualización: Marzo 2020)*


 ### Juegos

-* [Aquelarre of Games](http://aquelarreofgames.com.ar/podcast) (podcast)
-* [Diógenes Digital](https://diogenesdigital.es/podcasts/) (podcast) (Última Actualziación, Octubre, 2019)
+* [Aquelarre of Games](https://aquelarreofgames.com.ar/podcast/) (podcast)
+* [Diógenes Digital](https://diogenesdigital.es/podcasts/) - Sergio Pascual "Micropakito", Carlos del Pozo, Israel Alvarez "Borrachuzo" (podcast) *(Última Actualización: Octubre 2019)*


 ### Programación

-* [Aprende de los expertos en The Dojo MX](https://www.youtube.com/playlist?list=PLfeFnTZNTVDO5UwcIvWherSLxuBuK6ve4) (screencast)
-* [Commit.fm](https://anchor.fm/khriztianmoreno) (podcast) (Última Actualización, Julio 2020)
-* [Descargas de mi mente](https://www.ivoox.com/podcast-descargas-mi-mente_sq_f1584288_1.html) (podcast)
-* [Domain-Driven Design](https://www.youtube.com/playlist?list=PLZVwXPbHD1KMsiA7ahRSbIwS3QMsQ0SbL) Codely.tv (screencast)
-* [La Buhardilla Geek](https://www.ivoox.com/podcast-buhardilla-geek_sq_f1465450_1.html) (podcast)
-* [Maestría JS](https://anchor.fm/maestriajs) (podcast) (Última Actualización, Mayo 2020)
-* [Programar es una Mierda](https://www.programaresunamierda.com) (podcast)
+* [Aprende de los expertos en The Dojo MX](https://www.youtube.com/playlist?list=PLfeFnTZNTVDO5UwcIvWherSLxuBuK6ve4) - Héctor Iván Patricio Moreno (screencast)
+* [Commit.fm](https://anchor.fm/khriztianmoreno) - Cristian Moreno (podcast) *(Última Actualización: Julio 2020)*
+* [Descargas de mi mente](https://www.ivoox.com/podcast-descargas-mi-mente_sq_f1584288_1.html) - Juan Ángel (podcast)
+* [Domain-Driven Design](https://www.youtube.com/playlist?list=PLZVwXPbHD1KMsiA7ahRSbIwS3QMsQ0SbL) - Codely.TV (screencast)
+* [La Buhardilla Geek](https://www.ivoox.com/podcast-buhardilla-geek_sq_f1465450_1.html) - Juan Ángel Romero, Luis Miguel López (podcast)
+* [Maestría JS](https://anchor.fm/maestriajs) - Carlos Rojas (podcast) *(Última Actualización: Mayo 2020)*
+* [Programar es una Mierda](https://www.programaresunamierda.com) - Juan José Meroño Sanchez, Alexandre Ballesté Crevillén (podcast)


 ### Software Libre

-* [Compilando Podcast](https://compilando.audio) (podcast)
-* [Podcast Linux](https://podcastlinux.com) (podcast)
+* [Compilando Podcast](https://compilando.audio) - Paco Estrada (podcast)
+* [Podcast Linux](https://podcastlinux.com) - Juan Febles (podcast)


 ### Variados

-* [Code on the Rocks](http://codeontherocks.fm) (podcast)
+* [Code on the Rocks](http://codeontherocks.fm) - Jorge Barroso, Jorge Lería, Davide Mendolia (podcast)
 * [Codely.TV screencasts](https://codely.tv/blog/screencasts/) - Codely.TV (screencasts)
-* [Cosas de Internet](https://cosasdeinternet.fm/episodios) (podcast)
-* [Día30](https://www.dia30.mx) (podcast)
-* [Doomling & Chill](https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy8zNGM2ZjE5MC9wb2RjYXN0L3Jzcw==) (podcast)
-* [Educando Geek](https://educandogeek.github.io) (podcast)
-* [Frikismo Puro](https://www.ivoox.com/podcast-frikismo-puro_sq_f1268809_1.html) (podcast)
-* [Hijos de la Web](https://www.ivoox.com/podcast-hijos-web_sq_f1588708_1.html) (podcast)
-* [iCharlas](https://www.ivoox.com/podcast-icharlas-podcast_sq_f155400_1.html) (podcast)
-* [La Tecnologería](https://tecnologeria.com) (podcast)
-* [Más allá de la innovación](https://masalladelainnovacion.com/todos-los-podcasts/) (podcast)
-* [Mixx.io](https://mixx.io/podcasts) (podcast)
-* [NoSoloTech](https://www.ivoox.com/podcast-nosolotech-podcast_sq_f1851397_1.html) (podcast)
-* [Red de Sospechosos Habituales](https://www.ivoox.com/podcast-red-sospechosos-habituales_sq_f1564393_1.html) (podcast)
-* [Reescribiendo el Código](https://open.spotify.com/show/6efO7Lp5LENT3jqR0sYIG5) (podcast)
-* [TechAndLadies](https://open.spotify.com/show/0lTGoOCIFblNuVUCEOaBqP) (podcast)
-* [UGeek](https://ugeek.github.io) (podcast)
+* [Cosas de Internet](https://cosasdeinternet.fm/episodios) - Santiago Espinosa, Laura Rojas Aponte (podcast)
+* [Día30](https://www.dia30.mx) - Víctor Velázquez, Mariana Ruiz (podcast)
+* [Doomling & Chill](https://anchor.fm/bel-rey) - Bel Rey (podcast)
+* [Educando Geek](https://educandogeek.github.io) - Juanjo Gurillo (podcast)
+* [Frikismo Puro](https://www.ivoox.com/podcast-frikismo-puro_sq_f1268809_1.html) - Francisco Javier Gárate Soto, Juan Leiva (podcast)
+* [Hijos de la Web](https://www.ivoox.com/podcast-hijos-web_sq_f1588708_1.html) - Hector Trejo, Juan José Gutierrez, Óscar Miranda (podcast)
+* [iCharlas](https://www.ivoox.com/podcast-icharlas-podcast_sq_f155400_1.html) - Manuel Terrón, Philippe Rochette (podcast)
+* [La Tecnologería](https://tecnologeria.com) - Pablo Trinidad, Frank Blanco, Clarisa Guerra, Adrián Mesa, Jorge Cantón, José María García, Manuel Fernández, Iñigo Sendino (podcast)
+* [Más allá de la innovación](https://masalladelainnovacion.com/todos-los-podcasts/) - Philippe Lardy, Rosa Cano, Jose Miguel Parella, Paco Estrada, Mónica del Valle, Beatriz Ferrolasa (podcast)
+* [Mixx.io](https://mixx.io/podcasts) - Álex Barredo, Matías S. Zavia (podcast)
+* [NoSoloTech](https://www.ivoox.com/podcast-nosolotech-podcast_sq_f1851397_1.html) - Diana Aceves, Félix López, Katia Aresti, Jorge Barrachina (podcast)
+* [Red de Sospechosos Habituales](https://www.ivoox.com/podcast-red-sospechosos-habituales_sq_f1564393_1.html) - Javier Fernández (podcast)
+* [Reescribiendo el Código](https://open.spotify.com/show/6efO7Lp5LENT3jqR0sYIG5) - Catalina Arismendi, Julia Calvo, Jesica Checa, Florencia Risolo (podcast)
+* [TechAndLadies](https://anchor.fm/techladies) - Silvia Morillo, Cristina Pampín, Silvia García (podcast)
+* [UGeek](https://ugeek.github.io) - Ángel Jiménez de Luis (podcast)
--- a/casts/free-podcasts-screencasts-he.md
+++ b/casts/free-podcasts-screencasts-he.md
@ -0,0 +1,7 @@
+### כללי
+
+* [מפתחים חסרי תרבות](http://notarbut.co) (פודקאסט)
+* [עושים תוכנה](https://www.osimhistoria.com/software) (פודקאסט)
+* [פרונטאנד לנד](https://podcastim.org.il/פרונטאנד-לנד) (פודקאסט)
+* [צרות בהייטק](https://hitechproblems.podbean.com) (פודקאסט)
+* [רברס עם פלטפורמה](https://www.reversim.com) (פודקאסט)
--- a/casts/free-podcasts-screencasts-id.md
+++ b/casts/free-podcasts-screencasts-id.md
@ -1,4 +1,4 @@
 ### Podcast

-* [Ceritanya Developer Podcast](https://anchor.fm/ceritanya-developer) (Podcast)
-* [Devmuslim Podcast](https://anchor.fm/devmuslimid) (Podcast)
+* [Ceritanya Developer Podcast](https://anchor.fm/ceritanya-developer) (podcast)
+* [Developer Muslim](https://anchor.fm/devmuslimid) - Adinda Praditya (podcast)
--- a/casts/free-podcasts-screencasts-pt_BR.md
+++ b/casts/free-podcasts-screencasts-pt_BR.md
@ -33,8 +33,10 @@

 * [Data Hackers](https://datahackers.com.br/podcast) (podcast)
 * [Data Science Academy](http://datascienceacademy.com.br/blog/podcast-dsa/) (podcast)
+* [Let's Data](https://www.youtube.com/playlist?list=PLn_z5E4dh_Lj5eogejMxfOiNX3nOhmhmM) - Bernardo Lago, Felipe Schiavon, Leon Silva (screencast)
 * [Pizza de Dados](https://pizzadedados.com) (podcast)
 * [Programação Dinâmica - Machine Learning em Python](https://www.youtube.com/playlist?list=PL5TJqBvpXQv5CBxLkdqmou_86syFK7U3Q) (screencast)
+* [Teste de Turing](https://anchor.fm/testedeturing) - Erick Fonseca (podcast)


 ### Game development
--- a/courses/free-courses-bn.md
+++ b/courses/free-courses-bn.md
@ -0,0 +1,174 @@
+### Index
+
+* [Android](#android)
+* [C](#c)
+* [C#](#csharp)
+* [C++](#cpp)
+* [Dart](#dart)
+* [Flutter](#flutter)
+* [Git](#git)
+* [Go](#go)
+* [HTML and CSS](#html-and-css)
+  * [Bootstrap](#bootstrap)
+* [IDE and Editors](#ide-and-editors)
+* [Java](#java)
+* [JavaScript](#javascript)
+  * [jQuery](#jquery)
+  * [Node.js](#nodejs)
+  * [React](#react)
+* [Kotlin](#kotlin)
+* [MySQL](#mysql)
+* [PHP](#php)
+* [Programming paradigms](#programming-paradigms)
+* [Python](#python)
+* [Svelte](#svelte)
+* [TypeScript](#typescript)
+
+
+### Android
+
+* [Android Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3p9xzYLFGdfYliIRBLVDRV5) - Anisul Islam
+* [Android Firebase Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oDurEmECb5U_BZ1hrLaHx-) - Anisul Islam
+* [Android SQLite Database Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oJBRutwsFgUKrKJCjv9K3p) - Anisul Islam
+* [Android Tutorials Material Design](https://www.youtube.com/playlist?list=PLgH5QX0i9K3ru-TfN-YsRWKe4EEOLrWjn) - Anisul Islam
+* [Java, OOP & Android tutorials for beginners in Bengali](https://www.youtube.com/playlist?list=PLV3rqOvr9vgkmELwlSouvJtROQ6MWRbIH) - Zulkarnine Mahmud
+
+
+### C
+
+* [C - All you need to know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVASsjyqiNzgjUWHbDkN2Scy) - Stack Learner
+* [C Programming Bangla Tutorial Course](https://www.youtube.com/playlist?list=PLgH5QX0i9K3pCMBZcul1fta6UivHDbXvz) - Anisul Islam
+* [Pattern Printing in C](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oTxQhx2kejYmQn6qtRULCD) - Anisul Islam
+
+
+### <a name="csharp"></a>C#
+
+* [C# and ASP.NET MVC Full Bangla Tutorial BITM](https://www.youtube.com/playlist?list=PL_g-DE60bXDBpjMPUWGbmCLHnQDIIcw-6) - Learn With Nirash
+* [C# bangla tutorial | Basic to advance in depth bangla course](https://www.youtube.com/playlist?list=PLbC4KRSNcMnqQakB2xlZPoaV6uau4wTIt) - Learn Hunter
+* [C# OOP (object oriented programming) BanglaTutorials](https://www.youtube.com/playlist?list=PLqCbg_KAOnCe1RLKP2SVmSHZOCD-fWe3p) - Asp Dot Net Explorer
+
+
+### <a name="cpp"></a>C++
+
+* [C++ Bangla Tutorial Course](https://www.youtube.com/playlist?list=PLgH5QX0i9K3q0ZKeXtF--CZ0PdH1sSbYL) - Anisul Islam
+
+
+### Dart
+
+* [Dart All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVC2-nXUrvpcQEz3FgCSIQHT) - Stack Learner
+
+
+### Flutter
+
+* [Flutter Bangla Tutorial](https://www.youtube.com/playlist?list=PLg87mxEuu8-692INeEsxudyVifz7M3efy) - Techno BD XYZ
+* [Flutter Tutorial Bangla](https://www.youtube.com/playlist?list=PLZJlOXxGEkuyZQ-vA7B5vpvvtWU3Upo6p) - Soykot Hosen
+
+
+### Git
+
+* [Crash Course - সহজ বাংলায় Git & GitHub - Bangla ( বাংলা ) Tutorial](https://www.youtube.com/watch?v=oe21Nlq8GS4&t=182s) - Learn with Sumit
+* [Git and Github in One Video (Theory + Practical) | A 2 Z in Bangla](https://www.youtube.com/watch?v=4KdGgGsIDeA&t=787s) - SHAJ.T3CH
+* [Git Bangla Tutorial Complete](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDDw5eyzuRDXBzgdnW7UpDF) - Stack Learner
+
+
+### Go
+
+* [Golang কোডিং বুট ক্যাম্প ক্লাস](https://youtube.com/playlist?list=PLZij6bgEHkTXRakAtponkmP2CmlTTKlxl) - MASTER-ACADEMY
+
+
+### HTML and CSS
+
+* [CSS Complete Course in Bangla 2021](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qjCBXjTmv7Xeh8MDUUVJDO) - Anisul Islam
+* [CSS3 and CSS4 Weird Parts Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVD3oeT3ckKBmnc7krm-SZl2) - Stack Learner
+* [HTML Complete Course in Bangla 2021(Beginner to Advanced)](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oHBr5dsumGwjUxByN5Lnw3) - Anisul Islam
+
+
+#### Bootstrap
+
+* [Bootstrap 4 Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBr2NqbL3q71nk5FX8zB0nK) - Stack Learner
+* [Bootstrap 5 and 4 Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oC_wmWEZa2xWxJauIRQ9kG) - Anisul Islam
+
+
+### IDE and Editors
+
+* [VSCode Complete Tutorial Series | VSCode টিউটোরিয়াল সিরিজ](https://www.youtube.com/playlist?list=PL_XxuZqN0xVB_lroSm_xvTqvVBCpR4PQE) - Stack Learner
+
+
+### Java
+
+* [Java Bangla Tutorials | CORE Java | Complete OOP](https://www.youtube.com/playlist?list=PLgH5QX0i9K3oAZUB2QXR-dZac0c9HNyRa) - Anisul Islam
+* [Java Swing Bangla Tutorials](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rAHKr6IteF5kdgN6BorH9l) - Anisul Islam
+
+
+### JavaScript
+
+* [Express JS Crash Course in Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDm9HkiP4h_76qNBZix6XME) - Stack Learner
+* [Functional JavaScript Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDPR9fASxugXgQAWkZLcmt1) - Stack Learner
+* [JavaScript All You Need to Know | JS Bangla Tutorial | Stack Learner](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAu_dWUVFbscqZdTzE8t6Z1) - Stack Learner
+* [JavaScript Bangla Tutorial Course 2021](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qzryglMjcyEktz4q7ySunX) - Anisul Islam
+* [JavaScript Behind The Scene Bangla Tutorial](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDPaOrWvTIuhb5GRoJVWiE2) - Stack Learner
+* [JavaScript Full Playlist With Order](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAJTV_1ZXwB1XIiFkK0ddZA) - Stack Learner
+* [Make Fun of JavaScript Array](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDr08QgQHljCecWtA4jBLnS) - Stack Learner
+* [JS Bangla Tutorial Series for Beginners](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9OkrURufHpGUUTBjJhO9Ghy) - Learn with Sumit
+* [Modern JavaScript ES6 Bangla Tutorial](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9MFjMRp9EEHWKArbi0wdgXG) - Learn with Sumit
+* [Play with DOM - Bangla](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9MJDxMOzhYVuTrO1b5n-Tq_) - Learn with Sumit
+
+
+#### jQuery
+
+* [jQuery Bangla Series for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3pSJG9Hwjnykd0hLGEsW4DB) - Anisul Islam
+
+
+#### Node.js
+
+* [Dive Into NodeJS](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDHFj-ecFSU0SU-B0TuJRk9) - Stack Learner
+
+
+#### React
+
+* [React - Redux Complete Course](https://www.youtube.com/playlist?list=PL_XxuZqN0xVAvcGzTEAyPSOqgUQA08rNB) - Stack Learner
+* [Understand ReactJS Advanced Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBaeF3qUyvr2AxoXGwDd5cx) - Stack Learner
+* [Understand ReactJS Core Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBANld2gDEE6_0G886zavUs) - Stack Learner
+* [React JS Tutorial Bangla Series for Beginners](https://www.youtube.com/playlist?list=PLHiZ4m8vCp9M6HVQv7a36cp8LKzyHIePr) - Learn with Sumit
+
+
+### Kotlin
+
+* [Chapter 1 : Kotlin Basic Concepts Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDpRWRnXPWZcWIvz0JbeQe5) - Stack Learner
+
+
+### MySQL
+
+* [Bangla MySQL Database Tutorials](https://www.youtube.com/playlist?list=PLTydW-y9HsbQ2ztoaLBJTd4wwjc_oqWx4) - Delowar Jahan Imran, Training with Live Project (YouTube)
+* [mysql bangla tutorial \| Mysql Database \| HSC,CSE, Anyone](https://www.youtube.com/playlist?list=PLbC4KRSNcMnqp4x6XstgFCVi6XVu37t99) - Sohidul Islam, Learn Hunter (YouTube)
+* [MySql Database Bangla Tutorial Beginner to Advanced](https://www.youtube.com/playlist?list=PLH246IZCIBeA4h1R6fdgK06kj9lMb3joi) - Shoaib Hossain, Soft-All (YouTube)
+* [MySQL Database Bangla Tutorials (HSC student / Anyone)](https://www.youtube.com/playlist?list=PLgH5QX0i9K3qLcx9DvVDWmNJ7riPvxzCD) - Anisul Islam (YouTube)
+
+
+### PHP
+
+* [PHP All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCFLIrGA1GaxacvPTDQcsMV) - Stack Learner
+
+
+### Programming paradigms
+
+* [Java and OOO. Learn Object Oriented with Real Example](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDS-5KCnZyPl0LKQ8m49CHM) - Stack Learner
+* [Java and OOP Basics](https://www.youtube.com/playlist?list=PL_XxuZqN0xVB5kP3uxERI1rdrdrNifNwJ) - Stack Learner
+* [Java and OOP: Java Built in Classes and Features](https://www.youtube.com/playlist?list=PL_XxuZqN0xVBNvGFN6eIre7xjfnb6aVfB) - Stack Learner
+* [Object Oriented Programming Main Theory in Bangla](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCqNHQtxzS9LbeNRMG4AJmG) - Stack Learner
+
+
+### Python
+
+* [Python All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCH8fRfZ8sUuKEQQYIFMjtJ) - Stack Learner
+* [Python Bangla Tutorials for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rz5XqMsTk41_j15_6682BN) - Anisul Islam
+
+
+### Svelte
+
+* [Svelte 3: The Game Changer (Bangla Crash Course)](https://www.youtube.com/playlist?list=PL_XxuZqN0xVDJOOYnZxK-fbKxjxFHfc-H) - Stack Learner
+
+
+### TypeScript
+
+* [TypeScript: All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCzmP8m2l_h8PnVTSvcnJWO) - Stack Learner
--- a/courses/free-courses-en.md
+++ b/courses/free-courses-en.md
@ -3,6 +3,7 @@
 * [0 - MOOC](#0---mooc)
 * [Algorithms & Data Structures](#algorithms--data-structures)
 * [Android](#android)
+* [APL](#apl)
 * [Artificial Intelligence](#artificial-intelligence)
 * [Assembly](#assembly)
 * [AutoIt](#autoit)
@ -51,6 +52,7 @@
 * [Matlab](#matlab)
 * [Misc](#misc)
 * [.NET](#net)
+* [Objective-C](#objective-c)
 * [OCaml](#ocaml)
 * [Perl](#perl)
 * [Pharo](#pharo)
@ -67,6 +69,7 @@
 * [Scala](#scala)
 * [Security](#security)
 * [Solidity](#solidity)
+* [Spark](#spark)
 * [Swift](#swift)
  * [Vapor](#vapor)
 * [Theory](#theory)
@ -141,6 +144,7 @@
 * [Developing Android Apps with Kotlin](https://www.udacity.com/course/developing-android-apps-with-kotlin--ud9012) - (Udacity)
 * [Firebase in a Weekend: Android](https://www.udacity.com/course/firebase-in-a-weekend-by-google-android--ud0352) - (Udacity)
 * [Gradle for Android and Java](https://www.udacity.com/course/gradle-for-android-and-java--ud867) - (Udacity)
+* [Jetpack Compose](https://www.youtube.com/playlist?list=PLQkwcJG4YTCSpJ2NLhDTHhi6XBNfk9WiC) - Philipp Lackner
 * [Kotlin Bootcamp for Programmers](https://www.udacity.com/course/kotlin-bootcamp-for-programmers--ud9011) - (Udacity)
 * [Learn Android Application Development for Beginners](https://www.udemy.com/course/learn-android-application-development-y/) - Johan Jurrius, ProgramMe Programming (Udemy)
 * [Learn how to program: Android](https://www.learnhowtoprogram.com/android) - Epicodus Inc.
@ -153,6 +157,14 @@
 * [Programming Mobile Services for Android Handheld Systems: Concurrency](https://www.coursera.org/course/posaconcurrency)


+### APL
+
+* [APL Course](https://course.dyalog.com) - Dyalog (:construction: *in process*)
+* [APL Cultivation](https://aplwiki.com/wiki/APL_Cultivation) - Adám Brudzewsky
+* [Dyalog APL Tutor](https://tutorial.dyalog.com) - Dyalog
+* [Learn APL with Neural Networks](https://www.youtube.com/playlist?list=PLgTqamKi1MS3p-O0QAgjv5vt4NY5OgpiM) - Rodrigo Girão Serrão 
+
+
 ### Artificial Intelligence

 * [AI Courses](https://software.intel.com/content/www/us/en/develop/topics/ai/training/courses.html) - Intel Corporation
@ -487,6 +499,7 @@
 * [Java Tutorial for Complete Beginners](https://www.udemy.com/course/java-tutorial/) - John Purcell (Udemy)
 * [Learn how to program: Java](https://www.learnhowtoprogram.com/java-june-2017) - Epicodus Inc.
 * [Learn Java](https://www.sololearn.com/learning/1068) - Sololearn *(email address required)*
+* [Object Oriented Programming (OOP) In Java Course](https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk) - Kunal Kushwaha (YouTube)
 * [Object-Oriented programming with Java, part I](https://moocfi.github.io/courses/2013/programming-part-1/)
 * [Object-Oriented programming with Java, part II](https://moocfi.github.io/courses/2013/programming-part-2/)
 * [Princeton Algorithms, Part 1](https://www.coursera.org/course/algs4partI)
@ -574,6 +587,7 @@
 * [Node.js API Development for Beginners](https://www.udemy.com/course/node-js-api-tutorial/) (Udemy)
 * [Node.js Basics](https://www.youtube.com/playlist?list=PLqq-6Pq4lTTa-d0iZg41U2RDqECol9C5B) - Java Brains (Youtube)
 * [Node.js Crash Course Tutorial](https://www.youtube.com/playlist?list=PL4cUxeGkcC9jsz4LDYc6kv3ymONOKxwBU) - The Net Ninja
+* [Node.js Tutorial for Beginners](https://www.youtube.com/playlist?list=PLsyeobzWxl7occsESx2X1E2R2Uw5wCoeG) - Telusko (YouTube)
 * [Node.js Tutorial for Beginners: Learn Node in 1 Hour](https://www.youtube.com/watch?v=TlB_eWDSMt4) - Moshfegh Hamedani, Programming with Mosh (YouTube)


@ -739,6 +753,11 @@
 * [Learn how to program: .NET](https://www.learnhowtoprogram.com/net) - Epicodus Inc.


+### Objective-C
+
+* [Objective-C for Swift Developers](https://www.udacity.com/course/objective-c-for-swift-developers--ud1009) - Gabrielle Miller-Messner (Udacity)
+
+
 ### OCaml

 * [Cornell's Data Structures and Functional Programming](http://www.cs.cornell.edu/courses/cs3110/2015fa/)
@ -890,6 +909,11 @@
 * [Rust Tutorial](https://www.youtube.com/playlist?list=PLLqEtX6ql2EyPAZ1M2_C0GgVd4A-_L4_5) - Doug Milford


+### Spark
+
+* [Spark Tutorial | Spark Tutorial for Beginners | Apache Spark Full Course - Learn Apache Spark 2020](https://www.youtube.com/watch?v=zC9cnh8rJd0) Great Learning
+
+
 ### Scala

 * [Functional Programming Principles in Scala](https://www.coursera.org/course/progfun)
--- a/courses/free-courses-es.md
+++ b/courses/free-courses-es.md
@ -162,6 +162,7 @@

 ### Programación

+* [Aprende Javascript](https://aprendejavascript.org) - Jonathan MirCha
 * [Clojure](https://programadorwebvalencia.com/cursos/clojure/introducci%C3%B3n/) - Andros Fenollosa (Programador Web Valencia)
 * [Curso C#](https://www.pildorasinformaticas.es/course/curso-c) - Juan Díaz (Píldoras Informáticas)
 * [Curso de Python gratis y con certificación](https://edutin.com/curso-de-python-4276) - Edutin
--- a/courses/free-courses-fa_IR.md
+++ b/courses/free-courses-fa_IR.md
@ -49,7 +49,7 @@

 ### JavaScript

-* [آموزش جاوا اسکریپت برای مبتدیان](https://youtube.com/playlist?list=PLV6mGBuPqmYuZEAJN7IBxkdNCzKXAGpqD) - Mansour Kalagar
+* [آموزش فارسی جاوا اسکریپت مقدماتی تا پیشرفته - JavaScript Tutorial](https://youtube.com/playlist?list=PLfbD3-Ao6cPpt5Y3Nkue_W-DrmdOLOaTH) - Mansour Kalagar
 * [دوره اموزشی جاوا اسکریپت از صفر](https://www.youtube.com/playlist?list=PLAt10Vana3Yctuu576LSxK6AiskBiWgOF) - Silicium


@ -67,6 +67,7 @@

 ### Linux

+* [آموزش رایگان لینوکس](https://www.youtube.com/playlist?list=PLFK3-mgWZHcpWSFgpy-uEwIb6xjj4vfkB) - Morteza Bashsiz
 * [آموزش لینوکس - سکان‌آکادمی](https://sokanacademy.com/courses/linux) - Behzad Moradi
 * [آموزش لینوکس برای آدم های شاد](https://www.youtube.com/playlist?list=PL-tKrPVkKKE2AniHDmp6zK9KGD1sjf0bd) - Jadi Mirmirani
 * [آموزش لینوکس مقدماتی](https://www.youtube.com/watch?v=ZwaBNkQKrts&list=PLPj7mSUQL4v_oVLO-2Q1QQ9fAH45u8z4A) - Hamid Emamian
@ -114,22 +115,27 @@
 * [آموزش پایتون - سکان‌آکادمی](https://sokanacademy.com/courses/python) - Narges Asadi
 * [آموزش پایتون مقدماتی](https://gotoclass.ir/courses/%d8%a2%d9%85%d9%88%d8%b2%d8%b4-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86) - Jadi Mirmirani
 * [دوره آموزش رایگان زبان پایتون ( Python ) از مقدماتی تا پیشرفته](https://toplearn.com/courses/2150/%D8%A2%D9%85%D9%88%D8%B2%D8%B4-%D8%B1%D8%A7%DB%8C%DA%AF%D8%A7%D9%86-%D9%BE%D8%A7%DB%8C%D8%AA%D9%88%D9%86-(-python-)) - Mohammad Ordokhani (TopLearn) *(نیاز به ثبت نام دارد)*
+* [دوره مقدماتی تا پیشترفته پایتون - کدتراپی](https://www.youtube.com/playlist?list=PLSMC8KtOWURqgm0c6iVXrGzK4ymzJUnfj) - CodeTherapy


-  ### Django
+### Django

-  * [دوره اموزش جنگو مقدماتی تا پیشرفته](https://www.youtube.com/playlist?list=PLAt10Vana3YeAwS_LyLCeu7chml8eP8bh) - Silicium
-  * [سوکت نویسی با کتابخانه جنگو چنلز](https://www.youtube.com/playlist?list=PLRU2zoAmuzJ2GD68st5SinXXv_Gv1lWRm) - Shahriar Shariati
+* [دوره اموزش جنگو مقدماتی تا پیشرفته](https://www.youtube.com/playlist?list=PLAt10Vana3YeAwS_LyLCeu7chml8eP8bh) - Silicium
+* [سوکت نویسی با کتابخانه جنگو چنلز](https://www.youtube.com/playlist?list=PLRU2zoAmuzJ2GD68st5SinXXv_Gv1lWRm) - Shahriar Shariati
+* [Django2 All In One Course - دوره کامل جنگو و مهندسی بک اند](https://www.youtube.com/playlist?list=PLGlWjLcdLyGyqEqh9rBQ-9toPsFeHWrMr) - Boby Cloud


-  ### Flask
+### Flask

-  * [ آموزش توسعه وب با فریم‌ورک فلسک](https://www.youtube.com/playlist?list=PLdUn5H7OTUk1WYCrDJpNGpJ2GFWd7yZaw) - Alireza Ayinmehr
+* [ آموزش توسعه وب با فریم‌ورک فلسک](https://www.youtube.com/playlist?list=PLdUn5H7OTUk1WYCrDJpNGpJ2GFWd7yZaw) - Alireza Ayinmehr


 ### Web Development

+* [آموزش اینسپکت المنت](https://holosen.net/inspect-element-1/) - Hossein Badrnezhad
+* [آموزش طراحی وب](https://www.youtube.com/playlist?list=PLF10DSJQktjlCvLNuyxNjMPIHThHuIVqG) - Siavash Mahmoudian
 * [برنامه نویسی وب](https://maktabkhooneh.org/course/%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D9%87-%D9%86%D9%88%DB%8C%D8%B3%DB%8C-%D9%88%D8%A8-mk74) - Mohammad Salehe
 * [برنامه نویسی وب با HTML و CSS](https://holosen.net/web-design/) - Hossein Badrnezhad *(نیاز به ثبت نام دارد)* 
 * [دوره اموزشی بوت استرپ 5](https://www.youtube.com/playlist?list=PLAt10Vana3YciJv9EIcNSsm1yTGpOdJIp) - Mehran Tarif «Silicium»
+* [وب‌فریم‌ورک‌ها چگونه کار می‌کنند؟](https://www.youtube.com/playlist?list=PLRU2zoAmuzJ33x-___WkhyTJ8dDPaoOPk) - Shahriar Shariati

--- a/courses/free-courses-fr.md
+++ b/courses/free-courses-fr.md
@ -1,6 +1,7 @@
 ### Index

 * [Algorithmes & Structures des données](#algorithmes)
+* [APL](#apl)
 * [Bash / Shell](#bash--shell)
 * [C](#c)
 * [C#](#c-sharp)
@ -25,6 +26,11 @@
 * [Cours d'Algorithmie](https://www.youtube.com/playlist?list=PLrSOXFDHBtfGy7xYmf5LlNr8f-niDkf7_) - Formation Video


+### APL
+
+* [Découvrez le langage APL](https://www.youtube.com/watch?v=Nxq1BUUXobM&list=PLYKQVqyrAEj_DwkVAvj7xHxr72ite69nW) - Schraf : Maths-info
+
+
 ### Bash / Shell

 * [Apprendre à utiliser le shell Bash](https://www.pierre-giraud.com/shell-bash/) - Pierre Giraud
--- a/courses/free-courses-hi.md
+++ b/courses/free-courses-hi.md
@ -89,6 +89,7 @@

 * [Complete Git Tutorials For Beginners In Hindi](https://youtube.com/playlist?list=PLu0W_9lII9agwhy658ZPA0MTStKUJTWPi) - CodeWithHarry
 * [Git & GitHub Tutorial For Beginners In Hindi](https://www.youtube.com/watch?v=gwWKnnCMQ5c) - CodeWithHarry
+* [GitHub with Visual Studio (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhigWA1mNWzwErSBIZvgOJbNc) - Rajesh Kumar, Geeky Shows


 ### HTML and CSS
@ -152,8 +153,10 @@

 ### Python

+* [Advance Python (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhijd1hUF2VWiKt8FHNBa7kGb) - Rajesh Kumar, Geeky Shows
 * [Class 12 Board | Python \| Computer Science](https://www.youtube.com/playlist?list=PLKKfKV1b9e8oyESqu5mrGN-eDxHdNoi_j) - Apni Kaksha
 * [Complete Python Tutorial in Hindi (2020)](https://www.youtube.com/playlist?list=PLwgFb6VsUj_lQTpQKDtLXKXElQychT_2j) - Harshit Vashisth
+* [Core Python (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhigZkqrHbI_ZkPBrIr5Rsd5L) - Rajesh Kumar, Geeky Shows
 * [Python Programming in Hindi](https://www.greatlearning.in/academy/learn-for-free/courses/python-programming-in-hindi) (Great Learning) *(account required)*
 * [Python Tutorial For Beginners \| Hindi (With Notes)](https://www.youtube.com/playlist?list=PLu0W_9lII9agICnT8t4iYVSZ3eykIAOME) - Harry
 * [Python Tutorial in Hindi](https://www.youtube.com/playlist?list=PLQbQOmlGYH3tC535nKa7xB7dd7pZtYMZX) - edureka! Hindi
@ -161,6 +164,8 @@

 #### Django

+* [Django (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhigchy8DTw4pX4duTTpvqlh6) - Rajesh Kumar, Geeky Shows
+* [Django REST Framework (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhijTKyrlu-0g5GcP9nUp_HlN) - Rajesh Kumar, Geeky Shows 
 * [Django Tutorial for Beginners(Hindi)](https://www.youtube.com/playlist?list=PLgPJX9sVy92yWUMgLpWrXtegKxrWLRnRv) - Vijay Manral, CS Geeks
 * [Django(Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhigchy8DTw4pX4duTTpvqlh6) - Rajesh Kumar, GeekyShows
 * [Python Django Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ah7DDtYtflgwMwpT3xmjXY9) - CodeWithHarry
--- a/courses/free-courses-id.md
+++ b/courses/free-courses-id.md
@ -18,10 +18,8 @@
 * [Java](#java)
  * [Spring](#spring)
 * [JavaScript](#javascript)
-  * [AngularJS](#angularjs)
  * [Node](#node)
  * [React](#react)
-  * [Svelte](#svelte)
  * [Vue](#vue)
 * [Kotlin](#kotlin)
 * [Kubernetes](#kubernetes)
@ -184,6 +182,7 @@
 * [Belajar Spring Dasar Bahasa Indonesia](https://www.youtube.com/playlist?list=PLiuHSY2x882aeiESAgna5eVa_cOpFnxQm) - Imam Farisi (YouTube)
 * [Spring Framework and Spring Boot Tutorial (Project CRUD)](https://www.youtube.com/playlist?list=PLFfUPa9IV8Lp-Uognr1ALuqlKyxANO77x) - Wafiq Subhi, Mastahcode (Youtube)
 * [SpringBoot](https://www.youtube.com/playlist?list=PLRjWo99hnirwyafPfaxfu0psMR0hUmdQc) - Hendro Steven Tampake, Kelas Koding (YouTube)
+* [Tutorial Spring Framework & Spring Boot Dasar - Bahasa Indonesia](https://www.youtube.com/watch?v=VM3rwdMBORY) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)


 ### JavaScript
@ -192,16 +191,14 @@
 * [Belajar JavaScript](https://alwaysngoding.com/belajar-javascript/teori) - Muhammad Saleh Solahudin, Always Ngoding (account *required*)
 * [Belajar JavaScript Async](https://www.youtube.com/playlist?list=PL-CtdCApEFH-I4CD6km3BcXqrhWAkY4et) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)
 * [Dasar Pemrograman dengan JavaScriipt](https://www.youtube.com/playlist?list=PLFIM0718LjIWXagluzROrA-iBY9eeUt4w) - Web Programming UNPAS
+* [ExpressJS Tutorial Indonesia](https://www.youtube.com/playlist?list=PL9At9z2rvOC-sgzJx7rM_wMDONnEM4E0A) - Ekky Ridyanto (Balademy)
 * [JavaScript dan DOM (Document Object Model)](https://www.youtube.com/playlist?list=PLFIM0718LjIWB3YRoQbQh82ZewAGtE2-3) - Web Programming UNPAS
 * [JavaScript Lanjutan](https://www.youtube.com/playlist?list=PLFIM0718LjIUGpY8wmE41W7rTJo_3Y46-) - Web Programming UNPAS
 * [JavaScript Tutorial Bahasa Indonesia](https://www.youtube.com/playlist?list=PL-CtdCApEFH8SS0Gsj9_a0cC0jypFEoSg) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)
 * [Main Main JavaScript](https://www.youtube.com/playlist?list=PLCZlgfAG0GXCyd70hT8jYl24bLuPpH9iR) - Sekolah Koding
-* [Tutorial programming dari nol (Javascript)](https://www.youtube.com/playlist?list=PLwF5TtGsdsBdTJdjzZp1Wdog1DNcHZdDu) - Pintar Programming (YouTube)
-
-
-#### AngularJS
-
 * [Tutorial AngularJS Indonesia](https://www.youtube.com/playlist?list=PLohWNsc-n1L-3ffIaGRAjbTQm7bh9F9FG) - Windu Purnomo (YouTube)
+* [Tutorial programming dari nol (Javascript)](https://www.youtube.com/playlist?list=PLwF5TtGsdsBdTJdjzZp1Wdog1DNcHZdDu) - Pintar Programming (YouTube)
+* [Tutorial Svelte Indonesia](https://youtube.com/playlist?list=PLH1gH0TmFBBhWp2pn6vRhUVVC1txQuTZE) - Ipung Purwono, Ipung Dev Academy


 #### Node
@ -210,17 +207,15 @@
 * [Node.js Dasar](https://buildwithangga.com/kelas/node-javascript-dasar?thumbnail=nk4neM2UyG.36&main_leads=browse) - BuildWithAngga
 * [Pelajaran Node.js Sederhana](https://easy-to-learn5.teachable.com/p/nodejs) - Easy To Learn 5
 * [RESTFul API dengan Express.js dan MongoDB](https://www.youtube.com/watch?v=4X0MFuE8ebs) - IDStack (YouTube)
-
-
-#### Svelte
-
-* [Tutorial Svelte Indonesia](https://youtube.com/playlist?list=PLH1gH0TmFBBhWp2pn6vRhUVVC1txQuTZE) - Ipung Purwono, Ipung Dev Academy
+* [Tutorial NodeJS Dasar - Bahasa Indonesia](https://www.youtube.com/watch?v=b39Xqf5iyjo) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)


 #### React

 * [Belajar ReactJS Bahasa Indonesia](https://www.youtube.com/playlist?list=PLCZlgfAG0GXALZIcEe2t3XVuQ50JYbsbA) - Sekolah Koding
+* [Mari Kita Belajar Basic React JS](https://www.youtube.com/playlist?list=PLRKMmwY3-5MwXT8zMPbezhDnTM3cTA5cZ) - Irsyad A. Panjaitan, Parsinta (YouTube)
 * [React JS Dasar Bahasa Indonesia](https://www.youtube.com/playlist?list=PLIan8aHxsPj0XtJjWW04hN24fWXrCpLkY) - Wahidev Academy
+* [ReactJS-Firebase Tutorial](https://www.youtube.com/playlist?list=PLU4DS8KR-LJ2CnIvj7tI0zoijDSgR1m9j) - Prawito Hudoro
 * [ReactJS Tutorial](https://www.youtube.com/playlist?list=PLU4DS8KR-LJ03qEsHn9zV4qdhcWtusBqb) - Prawito Hudoro
 * [ReactJS Untuk Pemula](https://www.petanikode.com/reactjs-untuk-pemula/) - Petani Kode
 * [Tutorial React JS Bahasa Indonesia](https://www.youtube.com/playlist?list=PLp6BJq2fT_g91yCNCWi_bIe-ng7S7rt6V) - Lampung JS
@ -297,22 +292,23 @@
 * [Tutorial CodeIgniter untuk pemula](https://www.youtube.com/playlist?list=PLCZlgfAG0GXCYh65VSFR2yzC7CuPBcAjt) - Sekolah Koding


-### Codeigniter
+#### Codeigniter

 * [Tutorial Codeigniter](https://www.youtube.com/playlist?list=PLce3Eyp7oY9_5lzhkUtrV6ygriYcttMlg) - Framework Indonesia
 * [Tutorial Sistem Informasi Akademik dengan Codeigniter](https://www.youtube.com/playlist?list=PLce3Eyp7oY9_hXzGACf988F1ojvQlYmB0) - Framework Indonesia


-### Laravel
+#### Laravel

-* [Belajar CRUD Laravel 8 + Livewire](https://www.youtube.com/playlist?list=PLEgI20pG1DqzAa8npy9C_NDUvYwhslUb4) - Kawan Koding
-* [Belajar Laravel 7 Dari Awal](https://www.youtube.com/playlist?list=PLRKMmwY3-5MxfIKTn_wZ49XlplwHtz1AV) - Parsinta
+* [Belajar CRUD Laravel 8 + Livewire](https://www.youtube.com/playlist?list=PLEgI20pG1DqzAa8npy9C_NDUvYwhslUb4) - Muhammad Amirul Ihsan (Kawan Koding)
+* [Belajar Laravel 7 Dari Awal](https://www.youtube.com/playlist?list=PLRKMmwY3-5MxfIKTn_wZ49XlplwHtz1AV) - Irsyad A. Panjaitan (Parsinta)
 * [Belajar Laravel 8](https://www.youtube.com/playlist?list=PLFIM0718LjIWiihbBIq-SWPU6b6x21Q_2) - Sandhika Galih, Web Programming UNPAS
-* [Belajar Laravel 8 Dari Awal](https://www.youtube.com/playlist?list=PLRKMmwY3-5MwADhthqRaewl-7e7AhjpP8) - Parsinta
+* [Belajar Laravel 8 Dari Awal](https://www.youtube.com/playlist?list=PLRKMmwY3-5MwADhthqRaewl-7e7AhjpP8) - Irsyad A. Panjaitan (Parsinta)
 * [Belajar Laravel Pemula](https://www.youtube.com/playlist?list=PLIan8aHxsPj2c9ZA7Rrnciir2OydWTdbn) - Wahidev Academy
-* [Fitur Baru Laravel 8](https://www.youtube.com/playlist?list=PLEgI20pG1DqyTqCPiHnuWrBZtVFs5z95p) - Kawan Koding
-* [Membangun Web Profil Band dan Lirik dengan Laravel 8](https://www.youtube.com/playlist?list=PLRKMmwY3-5Mzoti-pT2MGuQERTd1_sm21) - Parsinta
-* [Membuat Tabel Post Tampilan](https://youtu.be/sYTin40_Ukw) - Kawan Koding
+* [Fitur Baru Laravel 8](https://www.youtube.com/playlist?list=PLEgI20pG1DqyTqCPiHnuWrBZtVFs5z95p) - Muhammad Amirul Ihsan (Kawan Koding)
+* [Membangun Web Profil Band dan Lirik dengan Laravel 8](https://www.youtube.com/playlist?list=PLRKMmwY3-5Mzoti-pT2MGuQERTd1_sm21) - Irsyad A. Panjaitan (Parsinta)
+* [Membuat Tabel Post Tampilan](https://youtu.be/sYTin40_Ukw) - Muhammad Amirul Ihsan (Kawan Koding)
+* [Tutorial Laravel 5.7 Dasar bahasa Indonesia](https://www.malasngoding.com/category/laravel/) - Diki Alfarabi Hadi (Malas Ngoding)
 * [Tutorial Laravel 7.x Dasar](https://www.youtube.com/playlist?list=PLCZlgfAG0GXBucXejxeeqCe_NWZS-67q_) - Sekolah Koding
 * [Tutorial Laravel Bahasa Indonesia](https://id-laravel.com) - ID Laravel

@ -357,7 +353,7 @@

 ### SASS / SCSS

-* [Belajar Menggunakan SASS](https://youtube.com/playlist?list=PLRKMmwY3-5Mxzx31JO3V9JJ8GLdUXYqt0) - Parsinta
+* [Belajar Menggunakan SASS](https://youtube.com/playlist?list=PLRKMmwY3-5Mxzx31JO3V9JJ8GLdUXYqt0) - Irsyad A. Panjaitan (Parsinta)
 * [Tutorial SASS](https://www.youtube.com/playlist?list=PLFIM0718LjIUqemgG97MAOK0J_berlQM5) - Web Programming UNPAS


--- a/courses/free-courses-pt_BR.md
+++ b/courses/free-courses-pt_BR.md
@ -84,7 +84,7 @@

 ### Database

-* [Curso de Banco de Dados MySQL](https://www.youtube.com/playlist?list=PLHz_AreHm4dkBs-795Dsgvau_ekxg8g1r) - Curso em Vídeo (Youtube)
+* [Curso de Banco de Dados MySQL](https://www.youtube.com/playlist?list=PLHz_AreHm4dkBs-795Dsgvau_ekxg8g1r) - Gustavo Guanabara, Curso em Video (YouTube)
 * [Curso de Modelagem de Dados](https://www.youtube.com/playlist?list=PLucm8g_ezqNoNHU8tjVeHmRGBFnjDIlxD) - Bosón Treinamentos (YouTube)
 * [Introdução ao MySQL e phpMyAdmin](https://www.udemy.com/mysql-phpmyadmin/) - Fernando Carmo, Mestres BI (Udemy)

--- a/courses/free-courses-ru.md
+++ b/courses/free-courses-ru.md
@ -37,6 +37,12 @@ ADV - Продвинутый. Тонкости.
 <h3 id="cpp">C++</h3>

 * [Введение в программирование (C++)](https://stepik.org/course/363) - Stepik (BEG)
+* [Основы разработки на С++: белый пояс](https://www.coursera.org/learn/c-plus-plus-white) - Шишков Илья Иванович, Парамонов Евгений Анатольевич, Полднев Антон Вячеславович, Лежанкин Иван Андреевич (Coursera) (INT)
+* [Основы разработки на С++: желтый пояс](https://www.coursera.org/learn/c-plus-plus-yellow) - Шишков Илья Иванович, Лежанкин Иван Андреевич, Парамонов Евгений Анатольевич, Полднев Антон Вячеславович (Coursera) (INT)
+* [Основы разработки на С++: коричневый пояс](https://www.coursera.org/learn/c-plus-plus-brown) - Шишков Илья Иванович, Полднев Антон Вячеславович, Матросов Михаил Александрович, Alexey Zobnin, Субоч Николай Михайлович (Coursera) (INT)
+* [Основы разработки на С++: красный пояс](https://www.coursera.org/learn/c-plus-plus-red) - Шишков Илья Иванович, Полднев Антон Вячеславович (Coursera) (INT)
+* [Основы разработки на С++: черный пояс](https://www.coursera.org/learn/c-plus-plus-black) - Шишков Илья Иванович, Полднев Антон Вячеславович, Субоч Николай Михайлович, Alexey Zobnin, Матросов Михаил Александрович (Coursera) (INT)
+* [Уроки по С++](https://ravesli.com/uroki-cpp) - Ravesli (INT)


 ### Clojure
@ -143,13 +149,15 @@ ADV - Продвинутый. Тонкости.
 ### Python

 * [Автоматизация тестирования с помощью Selenium и Python](https://stepik.org/course/575) - Stepik (INT)
+* [Добрый, добрый Python - обучающий курс от Сергея Балакирева](https://stepik.org/course/100707) - Сергей Балакирев (Stepik) (BEG)
 * [Основы программирования на Python](https://www.coursera.org/learn/python-osnovy-programmirovaniya) - Coursera (BEG)
-* ["Поколение Python": курс для начинающих](https://stepik.org/course/58852) - Stepik (BEG)
-* ["Поколение Python": курс для продвинутых](https://stepik.org/course/68343) - Stepik (INT)
-* [Программирование на Python](https://stepik.org/course/67) - Stepik (BEG)
+* [Питонтьютор: Бесплатный курс по программированию с нуля](https://pythontutor.ru) - Виталий Павленко, Владимир Соломатин, Д. П. Кириенко, команда Pythontutor (BEG)
+* ["Поколение Python": курс для начинающих](https://stepik.org/course/58852) - Тимур Гуев, Руслан Чаниев, Анри Табуев (Stepik) (BEG)
+* ["Поколение Python": курс для продвинутых](https://stepik.org/course/68343) - Тимур Гуев, Руслан Чаниев, Благотворительный фонд "Айкью Опшн" (Stepik) (INT)
+* [Программирование на Python](https://stepik.org/course/67) - Тимофей Бондарев, Павел Федотов (Stepik) (BEG)
 * [Python: быстрый старт](http://dfedorov.spb.ru/python3) - Дмитрий Фёдоров (BEG)
 * [Python для начинающих](https://ru.code-basics.com/languages/python) (BEG)
-* [Python: основы и применение](https://stepik.org/course/512) - Stepik (INT)
+* [Python: основы и применение](https://stepik.org/course/512) - Константин Зайцев, Антон Гардер (Stepik) (INT)


 ### R
--- a/docs/CODE_OF_CONDUCT-bs.md
+++ b/docs/CODE_OF_CONDUCT-bs.md
@ -27,3 +27,5 @@ Ovaj kodeks ponašanja je prilagođen iz [Contributor Covenant][homepage],
 verzija 1.3.0, dostupna na https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-de.md
+++ b/docs/CODE_OF_CONDUCT-de.md
@ -47,8 +47,9 @@ die angesichts der Umstände für notwendig und angemessen gehalten wird. Die
 Verantwortlichen sind verpflichtet, über diejenigen, die Vorfälle gemeldet haben, Verschwiegenheit zu wahren.


-
 Dieser Verhaltenskodex ist abgeleitet vom [Contributor Covenant][homepage],
 Version 1.3.0, verfügbar unter https://www.contributor-covenant.org/de/version/1/3/0/code-of-conduct.html

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-el.md
+++ b/docs/CODE_OF_CONDUCT-el.md
@ -42,3 +42,5 @@
 Έκδοση 1.3.0, διαθέσιμη στο https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-es.md
+++ b/docs/CODE_OF_CONDUCT-es.md
@ -25,3 +25,5 @@ Los casos de comportamiento abusivo, acosador o inaceptable pueden ser informado
 Este Código de Conducta está adaptado del [Pacto de Colaboradores][homepage], versión 1.3.0, disponible en https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Traducciones / otros idiomas](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-fa_IR.md
+++ b/docs/CODE_OF_CONDUCT-fa_IR.md
@ -43,3 +43,5 @@
  [homepage]: https://contributor-covenant.org
  
 </div>
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-fil.md
+++ b/docs/CODE_OF_CONDUCT-fil.md
@ -46,3 +46,5 @@ Ang Code of Conduct na ito ay hinango mula sa [Contributor Covenant][homepage],
 version 1.3.0, available at https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-fr.md
+++ b/docs/CODE_OF_CONDUCT-fr.md
@ -51,3 +51,5 @@ Ce Code de Conduite est adaptée du [Contributor Covenant][homepage],
 version 1.3.0, disponible à https://contributor-covenant.org/fr/version/1/3/0/code-of-conduct.html

 [homepage]: https://www.contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-hi.md
+++ b/docs/CODE_OF_CONDUCT-hi.md
@ -31,3 +31,5 @@ gmail.com पर victorfelder में एक परियोजना अन
 https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-id.md
+++ b/docs/CODE_OF_CONDUCT-id.md
@ -45,3 +45,5 @@ Kode Etik ini diadaptasi dari [Contributor Covenant][homepage],
 versi 1.3.0, avaible at https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-it.md
+++ b/docs/CODE_OF_CONDUCT-it.md
@ -26,3 +26,5 @@ Questo Codice di Comportamento è adattato da [Contributor Covenant][homepage],
 versione 1.3.0, disponibile a https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-ko.md
+++ b/docs/CODE_OF_CONDUCT-ko.md
@ -36,3 +36,5 @@
 그 내용은 https://contributor-covenant.org/version/1/3/0/ 에서 확인할 수 있습니다.

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-pl.md
+++ b/docs/CODE_OF_CONDUCT-pl.md
@ -26,3 +26,5 @@ Niniejszy *Kodeks postępowania* został zaadaptowany z [Contributor Covenant][h
 wersja 1.3.0, dostępna pod adresem https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-pt_BR.md
+++ b/docs/CODE_OF_CONDUCT-pt_BR.md
@ -46,3 +46,5 @@ Este Código de Conduta é uma adaptação de [Contributor Covenant][homepage],
 versão 1.3.0, disponível em https://www.contributor-covenant.org/pt-br/version/1/3/0/code-of-conduct/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-ru.md
+++ b/docs/CODE_OF_CONDUCT-ru.md
@ -41,3 +41,5 @@ victorfelder at gmail.com. Все жалобы будут рассмотрены
 version 1.3.0, available at https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT-uk.md
+++ b/docs/CODE_OF_CONDUCT-uk.md
@ -40,3 +40,5 @@
 version 1.3.0, available at https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CODE_OF_CONDUCT.md
+++ b/docs/CODE_OF_CONDUCT.md
@ -46,3 +46,5 @@ This Code of Conduct is adapted from the [Contributor Covenant][homepage],
 version 1.3.0, available at https://contributor-covenant.org/version/1/3/0/

 [homepage]: https://contributor-covenant.org
+
+[Translations](../README.md#translations)
--- a/docs/CONTRIBUTING-de.md
+++ b/docs/CONTRIBUTING-de.md
@ -1,10 +1,10 @@
-*Diese Anleitung in anderen Sprachen: [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Diese Anleitung in anderen Sprachen](../README.md#translations)*

 ## Lizenzvereinbarung für Mitwirkende
-Durch Deine Mitwirkung akzeptierst Du die [Lizenz](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) dieses Repositorys.
+Durch Deine Mitwirkung akzeptierst Du die [Lizenz](../LICENSE) dieses Repositorys.

 ## Verhaltenskodex für Mitwirkende
-Durch Deine Mitwirkung verpflichtest Du Dich, dem [Verhaltenskodex](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) dieses Repositorys zu folgen.
+Durch Deine Mitwirkung verpflichtest Du Dich, dem [Verhaltenskodex](CODE_OF_CONDUCT-de.md) dieses Repositorys zu folgen. ([translations](../README.md#translations))

 ## Kurzfassung
 1. „Ein Link, um ein Buch auf einfache Weise herunterzuladen“ ist nicht immer ein Link zu einem *kostenlosen* Buch. Bitte füge nur kostenlose Inhalte hinzu. Vergewissere Dich, dass sie kostenlos sind. Wir akzeptieren keine Links zu Seiten, die *voraussetzen*, dass man sich mit einer funktionierenden E-Mail-Adresse registriert, um ein Buch herunterzuladen, aber wir heißen Seiten willkommen, die um (optionale) Eingaben von E-Mail-Adressen bitten.
--- a/docs/CONTRIBUTING-el.md
+++ b/docs/CONTRIBUTING-el.md
@ -1,16 +1,16 @@
-*Διαβάστε το σε διαφορετικές γλώσσες: [Deutsch](CONTRIBUTING-de.md), [Français](CONTRIBUTING-fr.md), [English](CONTRIBUTING.md), [Español](CONTRIBUTING-es.md), **ελληνικά**, [Indonesia](CONTRIBUTING-id.md),[简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [Português (BR)](CONTRIBUTING-pt_BR.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [한국어](CONTRIBUTING-ko.md).*
+*[Διαβάστε το σε διαφορετικές γλώσσες](../README.md#translations)*


 <a name="contributor-license-agreement"></a>
 ## Συμφωνία Άδειας Χρήσης Συνεισφερόντων

-Συνεισφέροντας συμφωνείτε με την [ΑΔΕΙΑ](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) αυτού του αποθετηρίου.
+Συνεισφέροντας συμφωνείτε με την [ΑΔΕΙΑ](../LICENSE) αυτού του αποθετηρίου. ([translations](../README.md#translations))


 <a name="contributor-code-of-conduct"></a>
 ## Κώδικας Δεοντολογίας Συνεισφερόντων

-Συνεισφέροντας συμφωνείτε να σέβεστε τον [Κώδικα Δεοντολογίας](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-el.md) αυτού του αποθετηρίου.
+Συνεισφέροντας συμφωνείτε να σέβεστε τον [Κώδικα Δεοντολογίας](CODE_OF_CONDUCT-el.md) αυτού του αποθετηρίου.


 <a name="in-a-nutshell"></a>
--- a/docs/CONTRIBUTING-es.md
+++ b/docs/CONTRIBUTING-es.md
@ -1,4 +1,4 @@
-*Lea esto en otros idiomas: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Lea esto en otros idiomas][translations-list-link]*

 <a name="contributor-license-agreement"></a>
 ## Acuerdo de Licencia
@ -9,7 +9,7 @@ Al contribuir, acepta la [LICENCIA][license] de este repositorio.
 <a name="contributor-code-of-conduct"></a>
 ## Código de Conducta como Colaborador

-Al contribuir, acepta respetar el [Código de Conducta][coc] presente en el repositorio.
+Al contribuir, acepta respetar el [Código de Conducta][coc] ([traducciones / otros idiomas][translations-list-link]) presente en el repositorio.


 <a name="in-a-nutshell"></a>
@ -248,12 +248,13 @@ Si es posible imprimirlo y conservar su esencia, no es un Tutorial Interactivo.
 - Si especifica más de un archivo, los resultados obtenidos se basan en el estado del último archivo verificado. Debe tenerlo en cuenta ya que, debido a esto, puede obtener falsos positivos al finalizar el proceso. Así que tras el envío de la pull request asegúrese de inspeccionar el registro de compilación haciendo clic en "Show all checks" -> "Details".


-[license]: https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE
-[coc]: https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-es.md
+[license]: ../LICENSE
+[coc]: CODE_OF_CONDUCT-es.md
+[translations-list-link]: ../README.md#translations
 [issues]: https://github.com/EbookFoundation/free-programming-books/issues
 [formatting]: #formato-normalizado
 [guidelines]: #pautas
 [in_process]: #in_process
 [archived]: #archived
 [markdown_guide]: https://guides.github.com/features/mastering-markdown/
-[programming_playgrounds_list]: (https://github.com/EbookFoundation/free-programming-books/blob/master/more/free-programming-playgrounds.md)
+[programming_playgrounds_list]: https://github.com/EbookFoundation/free-programming-books/blob/main/more/free-programming-playgrounds.md
--- a/docs/CONTRIBUTING-fa_IR.md
+++ b/docs/CONTRIBUTING-fa_IR.md
@ -1,14 +1,15 @@
-*این متن را در زبان‌های دیگر بخوانید: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[این متن را در زبان‌های دیگر بخوانید](../README.md#translations)*
+
 <div dir="rtl">

 ## توافقنامه‌ی مجوز همکاری

-مشارکت در این مخزن به معنی موافقت شما با مجوز [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) این مخزن است.
+مشارکت در این مخزن به معنی موافقت شما با مجوز [LICENSE](../LICENSE) این مخزن است.


 ## مرام‌نامه‌ی همکار

-مشارکت در این پروژه به معنی موافقت با احترام به [مرام‌نامه‌ی](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) این مخزن است.
+مشارکت در این پروژه به معنی موافقت با احترام به [مرام‌نامه‌ی](CODE_OF_CONDUCT-fa_IR.md) این مخزن است. ([translations](../README.md#translations))


 ## به طور خلاصه
--- a/docs/CONTRIBUTING-fil.md
+++ b/docs/CONTRIBUTING-fil.md
@ -1,10 +1,10 @@
-*Basahin ito sa ibang mga wika: [Deutsch](CONTRIBUTING-de.md), [Français](CONTRIBUTING-fr.md), **Filipino**, [Español](CONTRIBUTING-es.md), [English](CONTRIBUTING.md), [Indonesia](CONTRIBUTING-id.md),[简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [Português (BR)](CONTRIBUTING-pt_BR.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [한국어](CONTRIBUTING-ko.md).*
+*[Basahin ito sa ibang mga wika](../README.md#translations)*

 ## Kasunduan sa Lisensya ng Contributor
-Sa pamamagitan ng pag-aambag sumasang-ayon ka sa [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) ng repositoryong ito.
+Sa pamamagitan ng pag-aambag sumasang-ayon ka sa [LICENSE](../LICENSE) ng repositoryong ito.

 ## Kodigo ng Pag-uugali ng Contributor
-Sa pamamagitan ng pag-aambag sumasang-ayon kang igalang ang [Code of Conduct](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-fil.md) ng repositoryong ito.
+Sa pamamagitan ng pag-aambag sumasang-ayon kang igalang ang [Code of Conduct](CODE_OF_CONDUCT-fil.md) ng repositoryong ito. ([translations](../README.md#translations))

 ## Sa maikling sabi
 1. "Ang isang link para madaling mag-download ng libro" ay hindi palaging isang link sa isang *libre* na libro. Mangyaring mag-ambag lamang ng libreng nilalaman. Tiyaking libre ito. Hindi kami tumatanggap ng mga link sa mga pahina na *nangangailangan* ng gumaganang mga email address upang makakuha ng mga aklat, ngunit malugod naming tinatanggap ang mga listahan na humihiling sa kanila.
--- a/docs/CONTRIBUTING-fr.md
+++ b/docs/CONTRIBUTING-fr.md
@ -1,16 +1,16 @@
-*Lisez ceci dans d'autres langues: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Español](CONTRIBUTING-es.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Lisez ceci dans d'autres langues](../README.md#translations)*

 ## Contrat de Licence des Contributeurs
-En contribuant, vous acceptez la [LICENCE](https://github.com/ElivreFoundation/free-programming-livres/blob/master/LICENSE) de ce repositoire.
+En contribuant, vous acceptez la [LICENCE](../LICENSE) de ce repositoire.

 ## Code de conduite des contributeurs
-En contribuant, vous acceptez de respecter le [Code de Contrat](https://github.com/ElivreFoundation/free-programming-livres/blob/master/CODE_OF_CONDUCT.md) de ce repositoire.
+En contribuant, vous acceptez de respecter le [Code de Contrat](CODE_OF_CONDUCT-fr.md) de ce repositoire. ([translations](../README.md#translations))

 ## En bref

 1. "Un lien pour télécharger facilement un livre" n'est pas toujours un lien vers un livre *gratuit*. Merci de ne contribuer qu'à du contenu gratuit. Assurez-vous que c'est gratuit. Nous n'acceptons pas les liens vers des pages qui *nécessitent* des adresses e-mail valides pour obtenir des livres, mais nous accueillons les annonces qui en font la demande.

-2. Vous n'êtes pas obligé de connaître Git : si vous avez trouvé quelque chose d'intéressant qui n'est *pas déjà dans ce repositoire*, veuillez ouvrir un [Problème](https://github.com/ElivreFoundation/free-programming-livres/issues) avec vos propositions de liens.
+2. Vous n'êtes pas obligé de connaître Git : si vous avez trouvé quelque chose d'intéressant qui n'est *pas déjà dans ce repositoire*, veuillez ouvrir un [Problème](https://github.com/EbookFoundation/free-programming-books/issues) avec vos propositions de liens.
    - Si vous savez Git, Forkez le repo et envoyez vos pull requests.
 3. Nous avons 5 types de listes. Choisissez le bon:

@ -42,7 +42,7 @@ En contribuant, vous acceptez de respecter le [Code de Contrat](https://github.c
 - si un lien existe dans plusieurs formats, ajoutez un lien séparé avec une note sur chaque format
 - si une ressource existe à différents endroits sur Internet
    + utiliser le lien avec la source la plus autoritaire (c'est-à-dire que le site de l'auteur est meilleur que le site de l'éditeur, qui est meilleur qu'un site tiers)
-    + s'ils renvoient à des éditions différentes et que vous jugez que ces éditions sont suffisamment différentes pour qu'elles valent la peine d'être conservées, ajoutez un lien séparé avec une note sur chaque édition (voir [Problème #2353](https://github.com/ElivreFoundation/free-programming-livres/issues/2353) pour contribuer à la discussion sur le formatage.))
+    + s'ils renvoient à des éditions différentes et que vous jugez que ces éditions sont suffisamment différentes pour qu'elles valent la peine d'être conservées, ajoutez un lien séparé avec une note sur chaque édition (voir [Problème #2353](https://github.com/EbookFoundation/free-programming-books/issues/2353) pour contribuer à la discussion sur le formatage.))
 - préférer les commits atomiques (un commit par ajout/suppression/modification) aux plus gros commits. Pas besoin d'écraser vos commits avant de soumettre un PR. (Nous n'appliquerons jamais cette règle car c'est juste une question de commodité pour les responsables)
 - si le livre est plus ancien, indiquez la date de parution avec le titre.
 - incluez le ou les noms de l'auteur, le cas échéant. Vous pouvez raccourcir les listes d'auteurs avec "et al."
--- a/docs/CONTRIBUTING-id.md
+++ b/docs/CONTRIBUTING-id.md
@ -1,10 +1,10 @@
-*Instruksi ini dalam bahasa lain: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md),[Español](CONTRIBUTING-es.md), [Français](CONTRIBUTING-fr.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Instruksi ini dalam bahasa lain](../README.md#translations)*

 ## Perjanjian lisensi kontributor
-Dengan kerja sama Anda, Anda menerima [lisensi](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) dari repositori ini.
+Dengan kerja sama Anda, Anda menerima [lisensi](../LICENSE) dari repositori ini.

 ## Kode Etik untuk Kontributor
-Dengan partisipasi Anda, Anda berjanji untuk mengikuti [Kode Etik](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) dari repositori ini.
+Dengan partisipasi Anda, Anda berjanji untuk mengikuti [Kode Etik](CODE_OF_CONDUCT-id.md) dari repositori ini. ([translations](../README.md#translations))

 ## Versi pendek
 1. "Tautan untuk mengunduh buku dengan mudah" tidak selalu merupakan tautan ke buku *gratis*. Harap hanya menambahkan konten gratis. Pastikan mereka gratis. Kami tidak menerima tautan ke situs yang * mengharuskan * Anda mendaftar dengan alamat email yang berfungsi untuk mengunduh buku, tetapi kami menyambut situs yang meminta alamat email.
--- a/docs/CONTRIBUTING-it.md
+++ b/docs/CONTRIBUTING-it.md
@ -1,10 +1,10 @@
-*Leggilo in altre lingue: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Español](CONTRIBUTING-es.md), [Français](CONTRIBUTING-fr.md), **Italiano**, [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Leggilo in altre lingue](../README.md#translations)*

 ## Accordo di Licenza
-Contribuendo tu accetti alla [LICENZA](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) di questa repository.
+Contribuendo tu accetti alla [LICENZA](../LICENSE) di questa repository.

 ## Codice di Comportamento del Collaboratore
-I collaboratori accettano di rispettare il [Codice di Comportamento](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-it.md) di questa repository.
+I collaboratori accettano di rispettare il [Codice di Comportamento](CODE_OF_CONDUCT-it.md) di questa repository. ([translations](../README.md#translations))

 ## In breve
 1. "Un link per scaricare facilmente un libro" non è sempre un link per scaricare un libro *gratuito*. Per favore contribuisci solo con contenuti gratuiti. Assicurati che sia gratuito. Non accettiamo link a pagine che *richiedono* email funzionanti per ottenere il libro, ma diamo il benvenuto agli annunci che li richiedono.
--- a/docs/CONTRIBUTING-ko.md
+++ b/docs/CONTRIBUTING-ko.md
@ -1,10 +1,10 @@
-*이 문서를 다른 언어로 보시려면: [Deutsch](CONTRIBUTING-de.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [Indonesia](CONTRIBUTING-id.md),[简体中文](CONTRIBUTING-zh.md), [English](CONTRIBUTING.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md).*
+*[이 문서를 다른 언어로 보시려면](../README.md#translations)*

 ## 기여자 라이선스 동의서
-이 프로젝트의 기여자들은 리포지토리의 [약관](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) 에 동의하는 것으로 간주됩니다.
+이 프로젝트의 기여자들은 리포지토리의 [약관](../LICENSE) 에 동의하는 것으로 간주됩니다.

 ## 기여자 행도 강령
-이 리포지토리 기여함으로서, 모든 기여자는 이 [행동강령](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-ko.md) 에 동의한 것으로 간주됩니다.
+이 리포지토리 기여함으로서, 모든 기여자는 이 [행동강령](CODE_OF_CONDUCT-ko.md) 에 동의한 것으로 간주됩니다. ([translations](../README.md#translations))

 ## 요약
 1. "책을 쉽게 내려받을 수 있는 바로가기"는 해당 책이 무료임을 보장하지 않습니다. 이 프로젝트에 기여하기 전에 해당 바로가기가 무료임을 확인해 주십시오. 저희는 또한 작동하는 이메일을 요구하는 바로가기는 허용하지 않습니다만, 이메일을 요청하는 것들은 허용됩니다.
--- a/docs/CONTRIBUTING-pt_BR.md
+++ b/docs/CONTRIBUTING-pt_BR.md
@ -1,10 +1,10 @@
-*Leia em outros idiomas: [Deutsch](CONTRIBUTING-de.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [Indonesia](CONTRIBUTING-id.md),[简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [한국어](CONTRIBUTING-ko.md).*
+*[Leia em outros idiomas](../README.md#translations)*

 ## Acordo de Licença do Contribuidor
-Ao contribuir você concorda com a [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) deste repositório.
+Ao contribuir você concorda com a [LICENSE](../LICENSE) deste repositório.

 ## Código de Conduta do Contribuidor
-Ao contribuir você concorda em respeitar o [Código de Conduta](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-pt_BR.md) deste repositório.
+Ao contribuir você concorda em respeitar o [Código de Conduta](CODE_OF_CONDUCT-pt_BR.md) deste repositório. ([translations](../README.md#translations))

 ## Em poucas palavras
 1. "Um _link_ para baixar um livro facilmente" nem sempre é um _link_ para um livro *gratuito*. Por favor contribua apenas com conteúdo gratuito. Certifique-se de que é grátis. Não são aceitos _links_ para páginas que *requerem* um endereço de email para obter livros, mas aceitamos listas que requerem.
--- a/docs/CONTRIBUTING-ru.md
+++ b/docs/CONTRIBUTING-ru.md
@ -1,14 +1,14 @@
-*Доступно на других языках: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Доступно на других языках](../README.md#translations)*

 <a name="contributor-license-agreement"></a>
 ## Лицензионное соглашение с участником

-Принимая участие, вы соглашаетесь с [ЛИЦЕНЗИЕЙ](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) этого репозитория.
+Принимая участие, вы соглашаетесь с [ЛИЦЕНЗИЕЙ](../LICENSE) этого репозитория.

 <a name="contributor-code-of-conduct"></a>
 ## Кодекс поведения автора

-Принимая участие, вы соглашаетесь соблюдать [Кодекс поведения](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT-ru.md) этого репозитория.
+Принимая участие, вы соглашаетесь соблюдать [Кодекс поведения](CODE_OF_CONDUCT-ru.md) этого репозитория. ([translations](../README.md#translations))

 <a name="in-a-nutshell"></a>
 ## В двух словах
--- a/docs/CONTRIBUTING-vi.md
+++ b/docs/CONTRIBUTING-vi.md
@ -1,4 +1,4 @@
-*Đọc bằng ngôn ngữ khác: [Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[Đọc bằng ngôn ngữ khác](../README.md#translations)*

 Bản dịch Tiếng Việt:

@ -11,10 +11,10 @@ Bản dịch Tiếng Việt:
 ---

 ## Giấy Phép Thỏa Thuận Cộng Tác Viên
-Bằng cách đóng góp, bạn đồng ý với [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) của kho lưu trữ này.
+Bằng cách đóng góp, bạn đồng ý với [LICENSE](../LICENSE) của kho lưu trữ này.

 ## Quy Tắc Ứng Xử của Cộng Tác Viên
-Bằng cách đóng góp, bạn đồng ý tôn trọng [Quy Tắc Ứng Xử](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) của kho lưu trữ này.
+Bằng cách đóng góp, bạn đồng ý tôn trọng [Quy Tắc Ứng Xử](CODE_OF_CONDUCT.md) của kho lưu trữ này. ([translations](../README.md#translations))

 ## Tóm Tắt
 1. "Một liên kết để tải một cuốn sách" không có nghĩa nó là một cuốn sách *miễn phí*. Vui lòng chỉ đóng góp nội dung miễn phí. Đảm bảo rằng nó là miễn phí. Chúng tôi không chấp nhận các liên kết đến các trang có *yêu cầu bắt buộc* nhập địa chỉ email để nhận sách, nhưng chúng tôi hoan nghênh những danh sách yêu cầu chúng.
--- a/docs/CONTRIBUTING-zh.md
+++ b/docs/CONTRIBUTING-zh.md
@ -1,14 +1,14 @@
-*阅读本文的其他语言版本：[Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [繁體中文](CONTRIBUTING-zh_TW.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[阅读本文的其他语言版本](../README.md#translations)*


 ## 贡献者许可协议

-请遵循此[许可协议](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE)参与贡献。
+请遵循此[许可协议](../LICENSE)参与贡献。


 ## 贡献者行为准则

-请同意并遵循此[行为准则](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md)参与贡献。
+请同意并遵循此[行为准则](CODE_OF_CONDUCT.md)参与贡献。([translations](../README.md#translations))


 ## 概要
--- a/docs/CONTRIBUTING-zh_TW.md
+++ b/docs/CONTRIBUTING-zh_TW.md
@ -1,14 +1,14 @@
-*閱讀其他語言版本的文件：[Deutsch](CONTRIBUTING-de.md), [English](CONTRIBUTING.md), [Français](CONTRIBUTING-fr.md), [Español](CONTRIBUTING-es.md), [简体中文](CONTRIBUTING-zh.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [Português Brasileiro](CONTRIBUTING-pt_BR.md), [한국어](CONTRIBUTING-ko.md).*
+*[閱讀其他語言版本的文件](../README.md#translations)*


 ## 貢獻者許可協議

-請遵循此 [許可協議](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) 參與貢獻。
+請遵循此 [許可協議](../LICENSE) 參與貢獻。


 ## 貢獻者行為準則

-請同意並遵循此 [行為準則](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) 參與貢獻。
+請同意並遵循此 [行為準則](CODE_OF_CONDUCT.md) 參與貢獻。([translations](../README.md#translations))


 ## 概要
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@ -1,10 +1,10 @@
-*Read this in other languages: [Deutsch](CONTRIBUTING-de.md), [Français](CONTRIBUTING-fr.md), [Filipino](CONTRIBUTING-fil.md), [Español](CONTRIBUTING-es.md), [Indonesia](CONTRIBUTING-id.md),[简体中文](CONTRIBUTING-zh.md), [繁體中文](CONTRIBUTING-zh_TW.md), [Português (BR)](CONTRIBUTING-pt_BR.md), [فارسی](CONTRIBUTING-fa_IR.md), [Tiếng Việt](CONTRIBUTING-vn.md), [Русский](CONTRIBUTING-ru.md), [한국어](CONTRIBUTING-ko.md).*
+*[Read this in other languages](../README.md#translations)*

 ## Contributor License Agreement
-By contributing you agree to the [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/master/LICENSE) of this repository.
+By contributing you agree to the [LICENSE](https://github.com/EbookFoundation/free-programming-books/blob/main/LICENSE) of this repository.

 ## Contributor Code of Conduct
-By contributing you agree to respect the [Code of Conduct](https://github.com/EbookFoundation/free-programming-books/blob/master/CODE_OF_CONDUCT.md) of this repository.
+By contributing you agree to respect the [Code of Conduct](CODE_OF_CONDUCT.md) of this repository. ([translations](../README.md#translations))

 ## In a nutshell
 1. "A link to easily download a book" is not always a link to a *free* book. Please only contribute free content. Make sure it's free. We do not accept links to pages that *require* working email addresses to obtain books, but we welcome listings that request them.
--- a/docs/HOWTO-ar.md
+++ b/docs/HOWTO-ar.md
@ -1,4 +1,4 @@
-إقرأ هذا بلغات أخرى: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[إقرأ هذا بلغات أخرى](../README.md#translations)*

 مرحبا بكم في *!Free-Programming-Books* نرحّب بجميع المساهمين الجدد؛ ونرحب أيضا بهؤلاء الذين يريدون تقديم أول بولّ ريكويست لهم علي جيت هبّ. إن كنت واحدا منهم، فإليك بعض المصادر التي ربما تساعدك:

@ -16,4 +16,4 @@

 حتي لو كنت مساهما متمرسا في المشاريع مفتوحة المصدر، هناك بعض الأشياء التي ربما تقف في طريقك. فعند تقديمك للبولّ ريكويست، يقوم *جيت هبّ أكشن* بتشغيل فاحص تلقائيا لاكتشاف بعض الأخطاء الصغيرة التي قد تحدث بسبب المسافات أو الأخطاء الأبجدية. فإذا كان الزر أخضرا، هذا يعني أن الكود جاهز للمراجعة، ولكن إن كان غير ذلك، إضغط علي "تفاصيل" تحت الإختبار الذي فشل لتري ما هي الأخطاء التي يجب أن تصححها قبل مراجعة الكود. بعد تصحيح الأخطاء قم بعمل كومّيت لإضافة التعديلات للبولّ ريكويست.

-في النهاية، إذا لم تتأكد من أن المصادر التي تريد إضافتها مناسبة لـ *Free-Programming-Books*، فقم بقرآءة الدليل الإرشادي في [CONTRIBUTING](CONTRIBUTING.md).
+في النهاية، إذا لم تتأكد من أن المصادر التي تريد إضافتها مناسبة لـ *Free-Programming-Books*، فقم بقرآءة الدليل الإرشادي في [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-bn.md
+++ b/docs/HOWTO-bn.md
@ -0,0 +1,16 @@
+*[অন্য ভাষায় এটা পড়ুন](../README.md#translations)*
+
+Free-Programming-Books রিপোজটরি তে স্বাগতম! আমরা নবাগত কন্ট্রিবিউটরস দের স্বাগতম জানাই; এমনকি যারা গিটহাবে এই প্রথম কোন "পুল রিকোয়েস্ট" তৈরি কয়েছেন। যদি আপনি তাদের একজন হয়ে থাকেন তাহলে নিচের রিসোর্স গুলো আপনার কাজে লাগতে পারেঃ
+
+* [:us: পুল রিকোয়েস্ট কি?](https://help.github.com/articles/about-pull-requests/) *(in english)*
+* [:us: কিভাবে পুল রিকোয়েস্ট দিব](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request) *(in english)*
+* [:us: গিটহাব হ্যালো ওয়ার্ল্ড](https://guides.github.com/activities/hello-world/) *(in english)*
+* [:us: ইউটিউব - নতুনদের জন্য গিটহাব](https://www.youtube.com/watch?v=0fKg7e37bQE) *(in english)*
+* [:us: ইউটিউব - কিভাবে একটি গিটহাব রিপোজিটরি ফোর্ক করবেন এবং পুল রিকোয়েস্ট সাবমিট করবেন](https://www.youtube.com/watch?v=G1I3HF4YWEw) *(in english)*
+* [:us: ইউটিউব - মার্কডাউন ক্র্যাশ কোর্স ](https://www.youtube.com/watch?v=HUBNt18RFbo) *(in english)*
+
+কোন প্রশ্ন করতে দ্বিধাবোধ করবেন না। সব কন্ট্রিবিউটরই ফার্স্ট পুল রিকোয়েস্ট থেকে শুরু করেছিল। আপনিও হতে পারেন আমাদের সহস্রতম কন্ট্রিবিউটর! 
+
+এমনকি আপনি যদি একজন অভিজ্ঞ ওপেন-সোর্স কন্ট্রিবিউটর ও হয়ে থাকেন, কখনও কখনো কিছু জিনিস ভুল হতেই পারে। যখন আপনি আপনার পুল রিকোয়েস্ট সাবমিট করবেন গিটহাব একশনস আপনার কোড কে যাচাই-বাছাই করবে, কখনো বা স্পেসিং বা ক্যাপিটালাইজেশন এর মত ছোটখাটো জিনিস খুঁজে বের করবে। যদি আপনি সবুজ বাটন পেয়ে যান, তাহলে বুঝতে পারবেন সবকিছু রিভিউ এর জন্য প্রস্তুত। কিন্তু যদি আপনি সবুজ বাটন না পান তাহলে ফেইল্ড হওয়া চেক এর নিচে "Details" এ ক্লিক করলে সমস্যাগুলি খুঁজে বের করতে পারবেন। তারপর সেই সমস্যাগুলো ফিক্স করার পর আপনার পুল রিকোয়েস্ট এ কমিট করবেন। 
+
+যদি আপনার সন্দেহ হয় যে আপনার রিসোর্স "Free-Programming-Books" এর জন্য উপযুক্ত কিনা, এই গাইডলাইন্স পড়ে দেখুন- [CONTRIBUTING](CONTRIBUTING.md) ([translations](../README.md#translations))
--- a/docs/HOWTO-bs.md
+++ b/docs/HOWTO-bs.md
@ -1,4 +1,4 @@
-Pročitaj ovo u drugim jezicima: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Pročitaj ovo u drugim jezicima](../README.md#translations)*

 Dobrodošli u Free-Programming-Books! Primamo nove kontributore; čak i one koji tek prave svoj prvi pull request na GitHub-u. Ako ste jedan od njih, ovdje je nekoliko izvora koji bi Vam mogli pomoći:

@ -14,4 +14,4 @@ Namojte se ustručavati da postavljate pitanja; svaki kontributor je započeo sa

 Čak i ako ste iskusan open source kontributor, postoje stvari u kojma biste se mogli zapetljati. Nakon što ste postavili Vaš PR, GitHub Actions će pokrenuti linter, koji često pronalazi problemčiće sa proredom ili abecednim redoslijedom. Ako dobijete zeleno dugme, sve je spremno za pregled, u suprotnom, kliknite "Details" ispod provjere koja nije uspjela kako biste otkrili šta se linter-u nije svidjelo. Ispravite problem i dodajte commit Vašem PR-u.

-Na kraju, ako niste sigurni da je resurs koji želite dodati prikladan za Free-Programming-Books, pročitajte smjernice u [CONTRIBUTING](CONTRIBUTING.md).
+Na kraju, ako niste sigurni da je resurs koji želite dodati prikladan za Free-Programming-Books, pročitajte smjernice u [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-de.md
+++ b/docs/HOWTO-de.md
@ -1,4 +1,4 @@
-Lese das hier auch in anderen Sprachen: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Lese das hier auch in anderen Sprachen](../README.md#translations)*

 Willkommen zu *Free-Programming-Books*! Wir heißen neue Beitragende herzlich willkommen. Auch die, die ihren ersten Pull Request (PR) auf GitHub machen möchten. Wenn Du eine dieser Personen bist, dann findest Du hier einige nützliche Ressourcen:

@ -13,4 +13,4 @@ Habe keine Angst eine Frage zu stellen. Jeder fängt mal an und macht irgendwann

 Selbst, wenn Du ein erfahrener Open-Source-Mitwirkender bist, könnte es Dinge geben, die Dich ins Straucheln bringen. Sobald Du Deinen PR eingereicht hast, führt GitHub Actions einen Linter aus und findet oft kleine Probleme mit Absätzen oder Alphabetisierung. Wenn Du eine grüne Schaltfläche siehst, ist alles zur Überprüfung bereit. Aber wenn das nicht der Fall ist, klicke unter der fehlgeschlagenen Überprüfung auf "Details", um herauszufinden, was dem Linter nicht gefallen hat. Behebe das Problem und füge Deinem PR einen Commit hinzu.

-Wenn Du Dir nicht sicher bist, ob die Ressource, die Du hinzufügen möchtest, für Free-Programming-Books geeignet ist, lies Dir die Richtlinien in [Mitwirken](CONTRIBUTING-de.md) durch.
+Wenn Du Dir nicht sicher bist, ob die Ressource, die Du hinzufügen möchtest, für Free-Programming-Books geeignet ist, lies Dir die Richtlinien in [Mitwirken](CONTRIBUTING-de.md) durch. ([translations](../README.md#translations))
--- a/docs/HOWTO-el.md
+++ b/docs/HOWTO-el.md
@ -1,4 +1,4 @@
-Διαβάστε το σε διαφορετικές γλώσσες: [Français](HOWTO-fr.md), [English](HOWTO.md), [Español](HOWTO-es.md), **ελληνικά**, [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [한국어](HOWTO-ko.md).
+*[Διαβάστε το σε διαφορετικές γλώσσες](../README.md#translations)*

 Καλώς ήλθατε στο Free-Programming-Books! Καλωσορίζουμε τους νέους συνεισφέροντες· ακόμα και αυτούς που κάνουν το πρώτο τους pull request (PR) στο Github. Αν είστε ένας από αυτούς, ορίστε λίγο υλικό που μπορεί να βοηθήσει:

@ -14,4 +14,4 @@

 Ακόμα και αν είστε έμπειρος συνεισφέρων, υπάρχουν πράγματα που μπορεί να σας μπερδέψουν. Όταν έχετε υποβάλλει το PR σας, το GitHub Actions θα τρέχει ένα linter, που βρίσκει συνήθως μικρά θέματα με τα κενά ή την αλφαβητική σειρά. Αν δείτε ένα πράσινο κουμπί, όλα είναι έτοιμα για ανασκόπηση, αλλά αν όχι, πατήστε "Details" (λεπτομέρειες) κάτω από τον έλεγχο που απέτυχε για να μάθετε τι δεν άρεσε στον linter. Διορθώστε το πρόβλημα και προσθέστε ένα commit στο PR σας.

-Τέλος, αν δεν είστε σίγουροι αν το υλικό που θέλετε να προσθέσετε είναι κατάλληλο για το Free-Programming-Books, διαβάστε προσεκτικά τις κατευθυντήριες γραμμές στο [CONTRIBUTING](CONTRIBUTING-el.md).
+Τέλος, αν δεν είστε σίγουροι αν το υλικό που θέλετε να προσθέσετε είναι κατάλληλο για το Free-Programming-Books, διαβάστε προσεκτικά τις κατευθυντήριες γραμμές στο [CONTRIBUTING](CONTRIBUTING-el.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-es.md
+++ b/docs/HOWTO-es.md
@ -1,4 +1,4 @@
-Lea esto en otros idiomas: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Lea esto en otros idiomas](../README.md#translations)*

 ¡Sea bienvenido a *Free-Programming-Books*! Damos una calurosa bienvenida a los nuevos colaboradores; incluso a aquellos que realizan su primera Pull Request (PR) en GitHub. Si es usted uno de ellos, aquí van algunos recursos que quizás le pueden ayudar:

@ -14,4 +14,4 @@ No se quede nunca con la duda, ni tenga miedo de hacer preguntas; todo colaborad

 Incluso si ya tiene algo de experiencia como colaborador en otros proyectos de código abierto, hay algunas cosas que pueden hacerle dar un traspiés. Una vez enviada su PR, *GitHub Actions* ejecutará un *linter*; el cuál se encarga a menudo de encontrar pequeños problemas con el espaciado, enlazado, sintaxis o la alfabetización. Si al finalizar este proceso de integración continua se enciende la luz verde, es que todo está listo para su revisión; pero si no, haga clic en los "enlaces de Detalle" que proporciona para averiguar qué fue exactamente lo que falló. Solucione dicho problema y agregue los cambios a su PR mediante un nuevo commit.

-Por último, si no está del todo seguro de si el recurso que desea agregar es apropiado para *Free-Programming-Books*, lea detenidamente las pautas que puede encontrar en [CONTRIBUTING](CONTRIBUTING-es.md).
+Por último, si no está del todo seguro de si el recurso que desea agregar es apropiado para *Free-Programming-Books*, lea detenidamente las pautas que puede encontrar en [CONTRIBUTING](CONTRIBUTING-es.md) ([traducciones / otros idiomas](../README.md#translations)).
--- a/docs/HOWTO-fa_IR.md
+++ b/docs/HOWTO-fa_IR.md
@ -1,4 +1,4 @@
-این متن را در زبان‌های دیگر بخوانید: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[این متن را در زبان‌های دیگر بخوانید](../README.md#translations)*


 <div dir="rtl">
@ -16,3 +16,5 @@

 در پایان، اگر مطمئن نیستید که منبعی که می‌خواهید اضافه کنید، برای Free-Programming-Books مناسب باشد، راهنماهای [CONTRIBUTING](CONTRIBUTING-fa_IR.md) را بخوانید.
 </div>
+
+([translations](../README.md#translations))
--- a/docs/HOWTO-fil.md
+++ b/docs/HOWTO-fil.md
@ -1,4 +1,4 @@
-Basahin ito sa ibang mga wika: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), **Filipino**, [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [한국어](HOWTO-ko.md).
+*[Basahin ito sa ibang mga wika](../README.md#translations)*

 Maligayang pagdating sa Free-Programming-Books! Tinatanggap namin ang mga bagong kontribyutor; kahit na ang mga gumagawa ng kanilang pinakaunang pull request sa Github. Kung isa ka sa mga iyon, narito ang ilang mapagkukunan na maaaring makatulong:

@ -14,4 +14,4 @@ Huwag mag-atubiling magtanong; bawat kontribyutor ay nagsimula sa isang unang PR

 Kahit na isa kang makaranasang open source na nag-ambag, may mga bagay na maaaring magalit sa iyo. Sa sandaling naisumite mo na ang iyong PR, ang GitHub Actions ay magpapatakbo ng isang linter, kadalasang nakakahanap ng maliliit na isyu sa spacing o alphabetization. Kung nakakuha ka ng berdeng button, handa na ang lahat para sa pagsusuri, ngunit kung hindi, i-click ang "Mga Detalye" sa ilalim ng tseke na nabigong malaman kung ano ang hindi nagustuhan ng linter. Ayusin ang problema at magdagdag ng commit sa iyong PR.

-Panghuli, kung hindi ka sigurado na ang resource na gusto mong idagdag ay angkop para sa Free-Programming-Books, basahin ang mga alituntunin sa [CONTRIBUTING](CONTRIBUTING-fil.md).
+Panghuli, kung hindi ka sigurado na ang resource na gusto mong idagdag ay angkop para sa Free-Programming-Books, basahin ang mga alituntunin sa [CONTRIBUTING](CONTRIBUTING-fil.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-fr.md
+++ b/docs/HOWTO-fr.md
@ -1,4 +1,4 @@
-Lisez ceci dans d'autres langues: [English](HOWTO.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Lisez ceci dans d'autres langues](../README.md#translations)*

 Bienvenue à Free-Programming-Books! Nous souhaitons la bienvenue aux nouveaux contributeurs; même ceux qui font leur toute première pull request sur Github. Si vous faites partie de ceux-ci, voici quelques ressources qui pourraient vous aider:

@ -12,4 +12,4 @@ N'hésitez pas à poser des questions; chaque contributeur a commencé par une p

 Même si vous êtes un contributeur open source expérimenté, il y a des choses qui peuvent vous faire trébucher. Une fois que vous avez soumis votre PR, GitHub Actions exécutera un linter, trouvant souvent de petits problèmes d'espacement ou d'alphabétisation. Si vous obtenez un bouton vert, tout est prêt pour l'examen, mais sinon, cliquez sur "Détails" sous la vérification qui n'a pas réussi pour découvrir ce que le linter n'a pas aimé. Résolvez le problème et ajoutez un commit à votre PR.

-Enfin, si vous n'êtes pas sûr que la ressource que vous souhaitez ajouter soit appropriée pour Free-Programming-Books, lisez les instructions dans [CONTRIBUTING](CONTRIBUTING-fr.md).
+Enfin, si vous n'êtes pas sûr que la ressource que vous souhaitez ajouter soit appropriée pour Free-Programming-Books, lisez les instructions dans [CONTRIBUTING](CONTRIBUTING-fr.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-hi.md
+++ b/docs/HOWTO-hi.md
@ -1,4 +1,4 @@
-इस लेख को अन्य भाषाओं में पढ़ें: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[इस लेख को अन्य भाषाओं में पढ़ें](../README.md#translations)*

 फ्री-प्रोग्रामिंग-पुस्तकों में आपका स्वागत है! हम नए योगदानकर्ताओं का स्वागत करते हैं; यहां तक कि उन लोगों के लिए जो Github पर अपना पहला पुल अनुरोध करते हैं। यदि आप उनमें से एक हैं, तो यहां कुछ संसाधन हैं जो मदद कर सकते हैं:
 * [About Pull Requests](https://help.github.com/articles/about-pull-requests/)
@ -11,4 +11,4 @@

 यहां तक कि अगर आप एक अनुभवी ओपन सोर्स योगदानकर्ता हैं, तो ऐसी चीजें हैं जो आपको यात्रा कर सकती हैं। एक बार जब आप अपना पीआर सबमिट कर देते हैं, तो गिथब एक्शन एक लिंटर चलाएगा, अक्सर रिक्ति या वर्णमाला के साथ छोटे मुद्दों को ढूंढता है। यदि आपको एक हरा बटन मिलता है, तो सब कुछ समीक्षा के लिए तैयार है, लेकिन यदि नहीं, तो यह जानने के लिए फेल्ड चेक के नीचे "डिटेल्स" पर क्लिक करें कि लिंटर को क्या पसंद नहीं आया। समस्या को ठीक करें और अपने पीआर के लिए एक प्रतिबद्धता जोड़ें।

-अंत में, यदि आप सुनिश्चित नहीं हैं कि जिस संसाधन को आप जोड़ना चाहते हैं, वह फ्री-प्रोग्रामिंग-बुक्स के लिए उपयुक्त है,[CONTRIBUTING](CONTRIBUTING.md). में दिशानिर्देशों के माध्यम से पढ़ें।
+अंत में, यदि आप सुनिश्चित नहीं हैं कि जिस संसाधन को आप जोड़ना चाहते हैं, वह फ्री-प्रोग्रामिंग-बुक्स के लिए उपयुक्त है,[CONTRIBUTING](CONTRIBUTING.md) में दिशानिर्देशों के माध्यम से पढ़ें।. ([translations](../README.md#translations))
--- a/docs/HOWTO-id.md
+++ b/docs/HOWTO-id.md
@ -1,4 +1,4 @@
-Baca ini dalam bahasa lain: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Baca ini dalam bahasa lain](../README.md#translations)*

 Selamat datang di Free-Programming-Books! Kami menyambut kontributor baru; bahkan untuk mereka yang membuat pull request pertama kali di Github. Jika Anda adalah salah satunya, berikut adalah beberapa sumber yang mungkin bisa membantu:

@ -13,4 +13,4 @@ Jangan ragu untuk bertanya; setiap kontributor memulainya dengan PR yang pertama

 Bahkan jika Anda seorang kontributor open source yang berpengalaman, ada hal-hal yang mungkin membuat Anda bingung. Setelah Anda mengirimkan PR Anda, GitHub Actions akan menjalankan linter, dan sering sekali menemukan sedikit masalah dengan spasi atau abjad. Jika Anda mendapatkan tombol hijau, semuanya siap untuk ditinjau, tetapi jika tidak, klik "Detail" di bawah centang yang gagal untuk mengetahui apa yang tidak disukai linter. Perbaiki masalah dan tambahkan commit ke PR Anda.

-Terakhir, jika Anda tidak yakin bahwa sumber daya yang ingin Anda tambahkan sesuai untuk Buku Pemrograman Gratis, bacalah panduan di [BERKONTRIBUSI](CONTRIBUTING-id.md). 
+Terakhir, jika Anda tidak yakin bahwa sumber daya yang ingin Anda tambahkan sesuai untuk Buku Pemrograman Gratis, bacalah panduan di [BERKONTRIBUSI](CONTRIBUTING-id.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-it.md
+++ b/docs/HOWTO-it.md
@ -1,4 +1,4 @@
-Leggilo in altre lingue: [Deutsch](HOWTO-de.md), [English](HOWTO.md), [Español](HOWTO-es.md), [Français](HOWTO-fr.md), **Italiano**, [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Leggilo in altre lingue](../README.md#translations)*

 Benvenuto su Free-Programming-Books! Diamo il benvenuto ai nuovi collaboratori; anche a quelli che fanno la loro prima pull request su Github. Se sei uno di quelli, ecco qualche risorsa che potrebbe aiutarti:

@ -14,4 +14,4 @@ Non esitare a fare domande; ogni collaboratore iniziato con una prima pull reque

 Anche se sei un collaboratore esperto in ambito open source, queste sono cose che potrebbero crearti dei problemi. Una volta che hai inviato la tua PR, Github Actions avvierà un linter, spesso trovando piccoli problemi di spaziatura o di ordinamento alfabetico. Se ottieni una spunta verde, tutto è pronto per una revisione, ma se non è così clicca su "Details" sotto il check che è stato fallito, analizza l'errore, risolvilo e aggiungi un commit alla PR. 

-In fine, se non sei sicuro che la risorsa che vuoi aggiungere è appropiata a Free-Programming-Books, leggi le linee guida su [CONTRIBUTING](CONTRIBUTING-it.md).
+In fine, se non sei sicuro che la risorsa che vuoi aggiungere è appropiata a Free-Programming-Books, leggi le linee guida su [CONTRIBUTING](CONTRIBUTING-it.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-km.md
+++ b/docs/HOWTO-km.md
@ -1,4 +1,4 @@
-អានជាភាសាផ្សេងៗ: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[អានជាភាសាផ្សេងៗ](../README.md#translations)*

 ស្វាគមន៍មកកាន់ Free-Programming-Books! យើងរីករាយ ទទូល contributors ថ្មីៗ; ទោះបីវាជាការpull request ជាលើកដំបូងរបស់អ្នកក៏ដោយ. បើអ្នកទើបតែចាប់ផ្តើម contibute ដំបូង , ធនធានខាងក្រោមអាចជួយអ្នកបាន:

@ -14,4 +14,4 @@

 ពេលអ្នកបង្កើត Pull request ដំបូង Github នឹងត្រួតពិនិត្រអោយអ្នកដោយប្រើ Linter ពេលវាចេញពណ័ខៀវមានន័យថាអ្នកអាចបង្កើត PR បាន ផ្ទុយទៅវិញអ្នកត្រូវកែជាមុនសិនដើម្បីបង្កើត PR ដោយចុចលើពាក្រ "Detail។ 

-ចុងបញ្ចប់ បើអ្នកអត់ច្បាស់ថា ធនធានរបស់អ្នក ជា "free-programming-books" ឬអត់ ចូរអ្នកអានបន្ថែមទីនេះ [CONTRIBUTING](CONTRIBUTING.md)។
+ចុងបញ្ចប់ បើអ្នកអត់ច្បាស់ថា ធនធានរបស់អ្នក ជា "free-programming-books" ឬអត់ ចូរអ្នកអានបន្ថែមទីនេះ [CONTRIBUTING](CONTRIBUTING.md)។ ([translations](../README.md#translations))
--- a/docs/HOWTO-ko.md
+++ b/docs/HOWTO-ko.md
@ -1,4 +1,4 @@
-다른언어: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[다른언어](../README.md#translations)*

 Free-Programming-Books 에 오신 것을 환영합니다! 우리는 Github 에 첫 Pull-request 를 분들을 포함한 새로운 기여자들을 환영합니다. 다음 리소스들은 당신에게 도움이 될 수 있습니다:

@ -14,4 +14,4 @@ Free-Programming-Books 에 오신 것을 환영합니다! 우리는 Github 에

 경험 많은 오픈 소스 기여자라 할지라도, 여러분을 곤란하게 만들 수 있는 것들이 있습니다. 일단 PR을 제출하면 GitHub Actions는 띄어쓰기나 알파벳 순으로 작은 문제를 발견하는 작업을 실행합니다. 녹색 단추가 나타나면 모든 항목을 검토할 준비가 되어 있지만 그렇지 않으면 검사에서 "상세 정보"를 클릭합니다. 문제를 해결하고 PR에 커밋을 추가합니다.

-마지막으로 추가하려는 리소스가 Free-Programming-Books에 적합한지 확실하지 않은 경우 [CONTRIBUTING](CONTRIBUTING-ko.md)의 지침을 확인십시오.
+마지막으로 추가하려는 리소스가 Free-Programming-Books에 적합한지 확실하지 않은 경우 [CONTRIBUTING](CONTRIBUTING-ko.md)의 지침을 확인십시오. ([translations](../README.md#translations))
--- a/docs/HOWTO-nl.md
+++ b/docs/HOWTO-nl.md
@ -1,17 +1,17 @@
-Lees dit in andere talen: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), **Nederlands**, [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md).
+*[Lees dit in andere talen](../README.md#translations)*

 Welkom bij Free-Programming-Books! We verwelkomen nieuwe bijdragers; zelfs degenen die hun allereerste pull-verzoeken doen. Als je een van hen bent, zijn hier enkele bronnen die je kunnen helpen:

 * [:us: Over pull-verzoeken](https://help.github.com/articles/about-pull-requests/) *(in engels)*
 * [:us: Een pull-verzoek maken](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request) *(in engels)*
 * [:us: Github Hallo Wereld](https://guides.github.com/activities/hello-world/) *(in engels)*
-* [:en: Youtube - Github-zelfstudie voor beginners](https://www.youtube.com/watch?v=0fKg7e37bQE) *(in engels)*
-* [:en: Youtube - Hoe een GitHub-repo te forken en een pull-verzoek in te dienen](https://www.youtube.com/watch?v=G1I3HF4YWEw) *(in engels)*
-* [:en: Youtube - Markdown Crash Course](https://www.youtube.com/watch?v=HUBNt18RFbo) *(in engels)*
+* [:us: Youtube - Github-zelfstudie voor beginners](https://www.youtube.com/watch?v=0fKg7e37bQE) *(in engels)*
+* [:us: Youtube - Hoe een GitHub-repo te forken en een pull-verzoek in te dienen](https://www.youtube.com/watch?v=G1I3HF4YWEw) *(in engels)*
+* [:us: Youtube - Markdown Crash Course](https://www.youtube.com/watch?v=HUBNt18RFbo) *(in engels)*


 Aarzel niet om vragen te stellen; elke bijdrager begon met een eerste PR. Je zou onze duizendste kunnen zijn!

 Zelfs als je een ervaren open source-bijdrager bent, zijn er dingen die je kunnen laten struikelen. Nadat je je PR hebt ingediend, voert GitHub Actions een linter uit, waarbij vaak kleine problemen met spatiëring of alfabetisering worden gevonden. Als je een groene knop krijgt, is alles klaar voor beoordeling, maar als dat niet het geval is, klik je op "Details" onder het vinkje dat niet heeft kunnen achterhalen wat de linter niet leuk vond. Los het probleem op en voeg een commit toe aan je PR.

-Tot slot, als je niet zeker weet of de bron die je wilt toevoegen geschikt is voor Free-Programming-Books, lees dan de richtlijnen in [CONTRIBUTING](CONTRIBUTING.md).
+Tot slot, als je niet zeker weet of de bron die je wilt toevoegen geschikt is voor Free-Programming-Books, lees dan de richtlijnen in [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-pl.md
+++ b/docs/HOWTO-pl.md
@ -1,4 +1,4 @@
-Przeczytaj to w innych językach: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Przeczytaj to w innych językach](../README.md#translations)*

 Witamy w *Free-Programming-Books*! Witamy nowych współtwórców; nawet tych, którzy robią swoje pierwsze żądanie ściągnięcia na Github. Jeśli jesteś jednym z nich, oto kilka zasobów, które mogą Ci pomóc:

@ -13,4 +13,4 @@ Witamy w *Free-Programming-Books*! Witamy nowych współtwórców; nawet tych, k
 Nie wahaj się zadawać pytań; każdy kontrybutor zaczynał od pierwszego PR. Możesz być naszym tysięcznym! 

 Nawet jeśli jesteś doświadczonym współtwórcą open source, są rzeczy, które mogą Cię frapować. Po przesłaniu swojego PR, *GitHub Actions* uruchomi linter, często znajdując drobne problemy z odstępami lub alfabetyzacją. Jeśli pojawi się zielony przycisk, wszystko jest gotowe do przeglądu, ale jeśli nie, kliknij „Szczegóły” pod kontrolką, która pozwoli dowiedzieć się co nie spodobało się linterowi. Napraw problem i dodaj zatwierdzenie do swojego PR.
-Na koniec, jeśli nie masz pewności, czy zasób, który chcesz dodać, jest odpowiedni dla *Free-Programming-Books*, przeczytaj wytyczne w [CONTRIBUTING](CONTRIBUTING-pl.md).
+Na koniec, jeśli nie masz pewności, czy zasób, który chcesz dodać, jest odpowiedni dla *Free-Programming-Books*, przeczytaj wytyczne w [CONTRIBUTING](CONTRIBUTING-pl.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-pt_BR.md
+++ b/docs/HOWTO-pt_BR.md
@ -1,4 +1,4 @@
-Leia em outras linguagens: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Leia em outras linguagens](../README.md#translations)*

 Seja bem-vindo(a) ao Free-Programming-Books (Livros de Programação Grátis)! Novos contribuidores são bem-vindos para nós; até mesmo aqueles fazendo seu primeiro pull request no Github. Se você é um deles, nós temos alguns recursos que podem ajudar:

@ -15,4 +15,4 @@ Não hesite em tirar suas dúvidas; todo contribuidor começou com um primeiro P
 Mesmo se você tem experiência com contribuições open source, existem algumas coisas que você pode errar. Por isso, assim que você submeter seu PR, ele vai ser testado pelo GitHub Actions, e as vezes, serão encontrados problemas como espaçamento. Se você receber um botão verde, está tudo certo para uma revisão de PR. Caso contrário, clique em "Detalhes" para ver o problema encontrado. Arrume ele e adicione um commit ao PR.


-Finalmente, se você não tem certeza de que o material que você que quer adicionar é apropriado para o Free-Programming-Books, leia o guia em [CONTRIBUTING](CONTRIBUTING-pt_BR.md).
+Finalmente, se você não tem certeza de que o material que você que quer adicionar é apropriado para o Free-Programming-Books, leia o guia em [CONTRIBUTING](CONTRIBUTING-pt_BR.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-ru.md
+++ b/docs/HOWTO-ru.md
@ -1,4 +1,4 @@
-Доступно на других языках: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[Доступно на других языках](../README.md#translations)*

 Добро пожаловать в Free-Programming-Books! Мы приветствуем новых участников; даже тех, кто делает свой самый первый пулреквест на Github. Если вы один из них, вот несколько ресурсов, которые могут вам помочь:

@ -18,4 +18,4 @@

 Даже если вы опытный участник проекта с открытым исходным кодом, есть вещи, которые могут вас сбить с толку. После того как вы отправите свой PR, GitHub Actions запустит линтер который часто находит небольшие проблемы с пробелами или алфавитным порядком. Если у вас появляется зеленая кнопка, все готово к проверке, а если нет, нажмите "Details" под проверкой, которая не смогла выяснить, что не понравилось линтеру. Устраните проблему и добавьте коммит в свой пулреквест.

-Наконец, если вы не уверены, что ресурс, который вы хотите добавить, подходит для Free-Programming-Books, прочтите рекомендации в [CONTRIBUTING](CONTRIBUTING-ru.md).
+Наконец, если вы не уверены, что ресурс, который вы хотите добавить, подходит для Free-Programming-Books, прочтите рекомендации в [CONTRIBUTING](CONTRIBUTING-ru.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-sl.md
+++ b/docs/HOWTO-sl.md
@ -1,4 +1,4 @@
-Preberite to v drugih jezikih: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Preberite to v drugih jezikih](../README.md#translations)*

 Dobrodošli v zbirki Free-Programming-Books! Lepo pozdravljeni vsi novi programerji - tudi tisti, ki boste na Githubu ustvarili vaš prvi zahtevek potega (pull-request). Če ste eden izmed njih, vam pri tem lahko pomaga nekaj virov:

@ -14,4 +14,4 @@ Ne oklevajte in postavljajte vprašanja; vsak programer je enkrat začel s svoji

 Tudi če ste izkušeni na področju programiranja odprte kode, se bodo zagotovo našle zadeve, ki vas lahko malce zaustavijo. Ko oddate PR, bo GitHub Actions zagnal pregledovalnik, ki pogosto najde manjše težave z razmikom ali abecedo. Če se vam prikaže zeleni gumb, je vse pripravljeno za pregled. Če se zeleni gumb ne prikaže, kliknite »Podrobnosti« pod kljukico, ki je ugotovila, kaj pregledovalniku ni bilo všeč. Odpravite težavo in dodajte zahtevo (commit) v PR.

-Če niste prepričani, da je vir, ki ga želite dodati, primeren za zbirko Free-Programming-Books, preberite smernice v [CONTRIBUTING](CONTRIBUTING.md).
+Če niste prepričani, da je vir, ki ga želite dodati, primeren za zbirko Free-Programming-Books, preberite smernice v [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-sv.md
+++ b/docs/HOWTO-sv.md
@ -1,4 +1,4 @@
-Läs detta på andra språk: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Svenska](HOWTO-se.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Läs detta på andra språk](../README.md#translations)*

 Välkommen till *Free-Programming-Books*! Vi välkomnar varmt nya medarbetare, även de som gör sin första Pull Request (PR) på GitHub. Om du är en av dem finns här några resurser som kan hjälpa dig:

@ -13,4 +13,4 @@ Var aldrig i tvivel, eller var rädd för att ställa frågor; varje bidragsgiva

 Om du har erfarenhet som bidragsgivare på andra projekt med öppen källkod finns det några saker du kan göra för att få det att fungera. När den skickats till PR, utför *GitHub Actions* en *linter*; som hittar en meny för att hitta små problem med utrymme, utrymme, syntax eller läskunnighet. Om denna slutliga integrationsprocess ska slutföras kommer ljuset och allt är klart för din granskning; men om inte, klicka på "Detaljer för detaljer" som ger det exakta genomsnittet av det du tappade. Lösningen på detta problem och summan av förändringarna i din PR innebär ett nytt engagemang.

-I slutändan, om det inte finns någon garanti för att resursen för vilket aggregatet används för *Gratisprogrammeringsböcker*, kan det definitivt hittas i [CONTRIBUTING](CONTRIBUTING.md).
+I slutändan, om det inte finns någon garanti för att resursen för vilket aggregatet används för *Gratisprogrammeringsböcker*, kan det definitivt hittas i [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-th.md
+++ b/docs/HOWTO-th.md
@ -1,4 +1,4 @@
-อ่านไฟล์นี้ในภาษาอื่น: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [한국어](HOWTO-ko.md), **ไทย**.
+*[อ่านไฟล์นี้ในภาษาอื่น](../README.md#translations)*

 ขอต้อนรับเข้าสู่ Free-Programming-Books! พวกเราขอต้อนรับ contributors ใหม่ทุกคน แม้ว่าคุณพึ่งจะเคยสร้าง pull request เป็นครั้งแรกบน Github หากคุณคือหนึ่งในนั้น ด้านล่างนี้คือแหล่งข้อมูลที่อาจจะเป็นประโยชน์:

@ -13,4 +13,4 @@

 แม้ว่าคุณจะเป็นคนที่มีประสบการณ์ในการร่วมพัฒนา Open Source แต่อาจจะมีบางเรื่องที่คุณยังไม่รู้ก็เป็นได้ เมื่อใดก็ตามที่คุณได้สร้าง PR ขึ้น GitHub Actions จะทำการตรวจสอบโค้ดด้วย linter สิ่งที่จะพบเจอได้บ่อยจะเป็นการเว้นช่องว่างหรือการเรียงลำดับอักษรที่ไม่ถูกต้อง หากคุณเห็นปุ่มสีเขียวหมายความว่าทุกอย่างพร้อมสำหรับการตรวจตรา แต่หากไม่ได้เป็นเช่นนั้น ให้กดที่ "Details" เพื่ิอดูว่าผิดพลาดที่จุดไหนจากการรัน linter แล้วทำการแก้ปัญหานั้นเพื่อดึง PR ขึ้นไปใหม่

-สุดท้ายนี้ หากคุณไม่แน่ใจว่าแหล่งข้อมูลเหล่านั้นจะเหมาะสมกับ Free-Programming-Books หรือไม่ ให้อ่านไกด์ไลน์จากในนี้ [CONTRIBUTING](CONTRIBUTING.md).
+สุดท้ายนี้ หากคุณไม่แน่ใจว่าแหล่งข้อมูลเหล่านั้นจะเหมาะสมกับ Free-Programming-Books หรือไม่ ให้อ่านไกด์ไลน์จากในนี้ [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-tr.md
+++ b/docs/HOWTO-tr.md
@ -0,0 +1,18 @@
+*[Diğer dillerde okumak için](../README.md#translations)*
+
+Free-Programming-Books Hoş Geldiniz! GitHub'da ilk Çekme Talebini (PR) yapanlardan olsanız bile Katkıda bulunmak için yeni gelenleri memnuniyetle karşılıyoruz. Eğer onlardan biriyseniz, işte size yardımcı olabilecek bazı kaynaklar:
+
+* [:us: Çekme İstekleri Hakkında](https://help.github.com/articles/about-pull-requests/) *(içinde ingilizce dilinde)*
+* [:us: Çekme isteği oluşturma](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request) *(içinde ingilizce dilinde)*
+* [:us: GitHub Merhaba Dünya](https://guides.github.com/activities/hello-world/) *(içinde ingilizce dilinde)*
+* [:us: Youtube - Yeni Başlayanlar İçin GitHub Eğitimi](https://www.youtube.com/watch?v=0fKg7e37bQE) *(içinde ingilizce dilinde)*
+* [:us: Youtube - Bir GitHub Repo Nasıl Çatallanır ve Bir Çekme Talebi Nasıl Gönderilir](https://www.youtube.com/watch?v=G1I3HF4YWEw) *(içinde ingilizce dilinde)*
+* [:us: Youtube - Markdown Crash Course](https://www.youtube.com/watch?v=HUBNt18RFbo) *(içinde ingilizce dilinde)*
+
+
+Soru sormaktan çekinmeyin; her katılımcı ilk bir PR ile başladı. Binincimiz olabilirsin!
+
+Deneyimli bir açık kaynak katılımcısı olsanız bile, sizi rahatsız edebilecek şeyler var. PR'nizi gönderdikten sonra,
+GitHub Actions, genellikle boşluk veya alfabetik sıralama ile ilgili küçük sorunlar bularak bir linter çalıştırır. Yeşil bir düğme alırsanız, her şey gözden geçirilmeye hazırdır, ancak değilse, linter'in neyi sevmediğini bulmak için başarısız olan kontrolün altındaki "Details" ı tıklayın. Sorunu düzeltin ve PR'nize bir taahhüt ekleyin.
+
+Nihayet, Eklemek istediğiniz kaynağın Free-Programming-Books için uygun olduğundan emin değilseniz, [CONTRIBUTING](CONTRIBUTING.md) bölümündeki yönergeleri okuyun. ([translations](../README.md#translations))
--- a/docs/HOWTO-uk.md
+++ b/docs/HOWTO-uk.md
@ -1,4 +1,4 @@
-Прочитати іншими мовами: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [한국어](HOWTO-ko.md).
+*[Прочитати іншими мовами](../README.md#translations)*

 Ласкаво просимо до Free-Programming-Books! Вітаємо нових учасників, навіть тих, хто робить свій перший pull request на Github. Якщо Ви один із них, ці ресурси можуть Вам допомогти:

@ -13,4 +13,4 @@

 Навіть якщо у Вас є досвід роботи з відкритим кодом, є речі, які можуть Вас збентежити. Після того, як Ви подасте свій PR, GitHub Actions запустить лінтер, який може виявити невеликі проблеми з пробілами або алфавітом. Якщо Ви отримаєте зелену кнопку, то все готово до перегляду, якщо ні, натисніть «Деталі» під перевіркою,щоб дізнатися що не сподобалося лінтеру. Вирішіть проблему та додайте комміт до свого Pull Request.

-На останок, якщо Ви не впевнені чи ресурс, який ви хочете додати, підходить для Free-Programming-Books, ознайомтеся з інструкціями в розділі [ДОДАТКИ](CONTRIBUTING.md).
+На останок, якщо Ви не впевнені чи ресурс, який ви хочете додати, підходить для Free-Programming-Books, ознайомтеся з інструкціями в розділі [ДОДАТКИ](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-vi.md
+++ b/docs/HOWTO-vi.md
@ -1,4 +1,4 @@
-Đọc tài liệu này bằng các ngôn ngữ khác: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Đọc tài liệu này bằng các ngôn ngữ khác](../README.md#translations)*

 Chào mừng tới Free-Programming-Books! Chúng tôi chào đón những người đóng góp mới, kể cả khi những người đóng góp lần đầu thực hiện trên Github. Nếu bạn là một trong số họ, đây là một số nguồn có thể giúp:

@ -13,4 +13,4 @@ Chào mừng tới Free-Programming-Books! Chúng tôi chào đón những ngư

 Nếu bạn là một người đóng góp có kinh nghiệm với mã nguồn mở, có nhiều điều bạn có thể phát triển. Một khi bạn gửi PR của bạn, Github Actions sẽ kiểm tra, thường tìm thấy những lỗi nhỏ với khoảng trống hoặc chính tả. Nếu bạn đặt tích xanh, mọi thứ đã sẵn sàng cho việc đánh giá, nếu không, nhấn vào "Details" dưới phần kiểm tra lỗi để tìm kiếm sai sót. Sửa vấn đề và thêm một commit tới PR của bạn.

-Cuối cùng, nếu bạn không chắc rằng nguồn bạn muốn thêm phù hợp cho Free-Programming-Books, đọc qua hướng dẫn trong [Đóng Góp](CONTRIBUTING-vi.md).
+Cuối cùng, nếu bạn không chắc rằng nguồn bạn muốn thêm phù hợp cho Free-Programming-Books, đọc qua hướng dẫn trong [Đóng Góp](CONTRIBUTING-vi.md). ([translations](../README.md#translations))
--- a/docs/HOWTO-zh.md
+++ b/docs/HOWTO-zh.md
@ -1,4 +1,4 @@
-阅读本文的其他语言版本：[English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[阅读本文的其他语言版本](../README.md#translations))*

 欢迎使用 Free-Programming-Books（免费编程书籍）！我们欢迎新的贡献者；即使是在 Github 上首次提出拉取请求的人。如果您是其中之一，那么以下资源可能会有所帮助：

@ -14,4 +14,4 @@

 即使您是经验丰富的开源贡献者，也有一些事情可能会让您绊倒。提交您的拉取请求后，GitHub Actions 会运行一个 linter（代码风格检测工具），经常发现间距或字母顺序方面的小问题。如果您获得绿色按钮，则说明一切准备就绪，但如果没有，请单击 "更多" 链接以查找 linter 不满意的地方。解决此问题并新增 commit 到您的拉取请求。

-最后，如果不确定要添加的资源是否适用于 Free-Programming-Books（免费编程书籍），请通读 [CONTRIBUTING](CONTRIBUTING-zh.md) 中的基本准则。
+最后，如果不确定要添加的资源是否适用于 Free-Programming-Books（免费编程书籍），请通读 [CONTRIBUTING](CONTRIBUTING-zh.md) 中的基本准则。([translations](../README.md#translations))
--- a/docs/HOWTO-zh_TW.md
+++ b/docs/HOWTO-zh_TW.md
@ -1,4 +1,4 @@
-閱讀本文的其他語言版本: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+*[閱讀本文的其他語言版本](../README.md#translations)*

 歡迎使用 Free-Programming-Books！我們歡迎新的貢獻者；即使是在 Github 上首次提出 pull request 的人。如果您是其中之一，那麼以下資源可能會對你有所幫助：

@ -15,4 +15,4 @@
 即使您是經驗豐富的開源貢獻者，也有一些事情可能會讓您遭受失敗。提交您的 PR 後，GitHub Actions 會運行程式碼品質分析工具，有時會發現間距或字母順序方面的問題。如果您獲得綠色按鈕，則說明一切準備就緒，但如果沒有，請點擊 "更多" 連結以尋找程式碼品質分析工具不满意的地方。修正此問題並新增 commit 到您的 PR。


-最後，如果不確定要添加的資源是否適合 Free-Programming-Books，請閱讀 [CONTRIBUTING](CONTRIBUTING-zh_TW.md) 中的指南。
+最後，如果不確定要添加的資源是否適合 Free-Programming-Books，請閱讀 [CONTRIBUTING](CONTRIBUTING-zh_TW.md) 中的指南。([translations](../README.md#translations))
--- a/docs/HOWTO.md
+++ b/docs/HOWTO.md
@ -1,4 +1,4 @@
-Read this in other languages: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [Filipino](HOWTO-fil.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+*[Read this in other languages](../README.md#translations)*

 Welcome to Free-Programming-Books! We welcome new contributors; even those making their very first pull request on Github. If you're one of those, here are some resources that might help:

@ -10,8 +10,8 @@ Welcome to Free-Programming-Books! We welcome new contributors; even those makin
 * [Youtube - Markdown Crash Course](https://www.youtube.com/watch?v=HUBNt18RFbo)


-Don't hesitate to ask questions; every contributor started with a first PR. You could be our thousandth!
+Don't hesitate to ask questions; every contributor started with a first PR. So... why not join our [large, growing](https://contributor-graph-api.apiseven.com/contributors-svg?repo=EbookFoundation/free-programming-books) community.

 Even if you're an experienced open source contributor, there are things that might trip you up. Once you've submitted your PR, GitHub Actions will run a linter, often finding little issues with spacing or alphabetization. If you get a green button, everything is ready for review, but if not, click "Details" under the check that failed to find out what the linter didn't like. Fix the problem and add a commit to your PR.

-Finally, if you're not sure that the resource you want to add is appropriate for Free-Programming-Books, read through the guidelines in [CONTRIBUTING](CONTRIBUTING.md).
+Finally, if you're not sure that the resource you want to add is appropriate for Free-Programming-Books, read through the guidelines in [CONTRIBUTING](CONTRIBUTING.md). ([translations](../README.md#translations))
--- a/more/free-programming-cheatsheets.md
+++ b/more/free-programming-cheatsheets.md
@ -1,5 +1,6 @@
 ### Index

+* [APL](#apl)
 * [Artificial Intelligence](#artificial-intelligence)
 * [Bash](#bash)
 * [C](#c)
@ -36,6 +37,14 @@
 * [Tensorflow](#tensorflow)


+### APL
+
+* [A reference card for GNU APL](https://github.com/jpellegrini/gnu-apl-refcard/blob/master/aplcard.pdf) - jpellegrini (PDF)
+* [Cheat Sheets](https://docs.dyalog.com/#CHEAT) - Dyalog (PDF)
+* [Dyalog APL - Vocabulary](https://awagga.github.io/dyalog/voc) - awagga (HTML)
+* [ReferenceCard](https://docs.dyalog.com/latest/ReferenceCard.pdf) - Dyalog (PDF)
+
+
 ### Artificial Intelligence

 * [What is Artificial Intelligence?](https://intelligencereborn.com/ArtificialIntelligence.html) IntelligenceReborn (HTML)
@ -82,6 +91,7 @@
 * [Git Cheat Sheet](http://git.jk.gs) - Jan Krüger (PDF, SVG)
  * [Git Cheat Sheet](https://jan-krueger.net/wordpress/wp-content/uploads/2007/09/git-cheat-sheet.pdf) (PDF)
  * [Git Cheat Sheet - extended](https://jan-krueger.net/wordpress/wp-content/uploads/2007/09/git-cheat-sheet-v2.zip) (PDF)
+* [Git ściąga (pl)](https://training.github.com/downloads/pl/github-git-cheat-sheet/) - GitHub
 * [GitHub Cheat Sheet](https://github.com/tiimgreen/github-cheat-sheet) - Tim Green (Markdown)


@ -104,12 +114,13 @@

 ### <a name="ide--editores"></a>IDE / Editors

-* [Editor VI - Guia de Referência](https://aurelio.net/curso/material/vim-ref.html) - Aurelio Marinho Jargas
+* [Editor VI - Guia de Referência (pt)](https://aurelio.net/curso/material/vim-ref.html) - Aurelio Marinho Jargas
 * [GNU Emacs Reference Card](https://www.gnu.org/software/emacs/refcards/pdf/refcard.pdf) - GNU.org (PDF)
-* [Vim Avançado](https://aurelio.net/vim/vim-avancado.txt) - Aurelio Marinho Jargas
-* [Vim Básico](https://aurelio.net/vim/vim-basico.txt) - Aurelio Marinho Jargas
+* [Vim Avançado (pt)](https://aurelio.net/vim/vim-avancado.txt) - Aurelio Marinho Jargas
+* [Vim Básico (pt)](https://aurelio.net/vim/vim-basico.txt) - Aurelio Marinho Jargas
+* [Vim Cheat Sheet](https://www.cs.cmu.edu/~15131/f17/topics/vim/vim-cheatsheet.pdf) - Allison McKnight (PDF)
 * [Vim Cheatsheet](https://devhints.io/vim) - Devhints, Rico Santa Cruz (HTML)
-* [Vim Médio](https://aurelio.net/vim/vim-medio.txt) - Aurelio Marinho Jargas
+* [Vim Médio (pt)](https://aurelio.net/vim/vim-medio.txt) - Aurelio Marinho Jargas
 * [Visual Studio Code: Keyboard shortcuts for Windows](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-windows.pdf) - Visual Studio (PDF)


--- a/more/free-programming-interactive-tutorials-en.md
+++ b/more/free-programming-interactive-tutorials-en.md
@ -23,6 +23,7 @@
  * [AngularJS](#angularjs)
  * [jQuery](#jquery)
  * [React](#react)
+  * [Redux](#redux)
 * [Kotlin](#kotlin)
 * [Language Agnostic](#language-agnostic)
  * [Operating Systems](#operating-systems)
@ -162,7 +163,6 @@
 * [Flex Box Adventure](https://codingfantasy.com/games/flexboxadventure) - Nick Bull
 * [Flexbox Defense](http://flexboxdefense.com)
 * [Flexbox Froggy](http://flexboxfroggy.com)
-* [FreeCodeCamp: Responsive Web Design Course](https://www.freecodecamp.org/learn/responsive-web-design/basic-html-and-html5/)
 * [Grid Attack](https://codingfantasy.com/games/css-grid-attack) - Nick Bull
 * [Grid Garden](https://cssgridgarden.com)
 * [HTML Tutorial](https://www.w3schools.com/html/) - W3Schools
@ -171,13 +171,14 @@
 * [Learn CSS: an evergreen CSS course and reference to level up your styling expertise](https://web.dev/learn/css/) - Andy Bell, Rachel Andrew, Una Kravets, Adam Argyle, Rob Dodson, Jiwoong Lee et al. (web.dev)
 * [Learn HTML & CSS interactively](https://www.codecademy.com/learn/web)
 * [Prototyping a professional website](https://www.codecademy.com/learn/make-a-website)
+* [Responsive Web Design Certification](https://www.freecodecamp.org/learn/responsive-web-design/) - freeCodeCamp


 #### Bootstrap

 * [Bootstrap 5 Tutorial](https://www.w3schools.com/bootstrap5/) - W3Schools
 * [Bootstrap Tutorial](https://www.tutlane.com/tutorial/bootstrap) - tutlane
-* [Front End Libraries: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap)
+* [Front End Development Libraries Certification: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap) - freeCodeCamp


 ### Java
@ -195,7 +196,7 @@
 * [Codecademy jquery track](https://www.codecademy.com/learn/jquery)
 * [ES6 Interactive Guide](http://stack.formidable.com/es6-interactive-guide/#/)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
-* [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript)
+* [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/) - freeCodeCamp
 * [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript)
 * [JavaScript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [JavaScript Tutorial](https://www.w3schools.com/js) - W3Schools
@ -219,17 +220,22 @@

 #### jQuery

-* [Front End Libraries: jQuery](https://www.freecodecamp.org/learn/front-end-libraries/jquery)
+* [Front End Development Libraries Certification: jQuery](https://www.freecodecamp.org/learn/front-end-libraries/jquery) - freeCodeCamp
 * [jQuery Tutorial](https://www.w3schools.com/jquery/) - W3Schools


 #### React

-* [Front End Libraries: React](https://www.freecodecamp.org/learn/front-end-libraries/react)
+* [Front End Development Libraries Certification: React](https://www.freecodecamp.org/learn/front-end-libraries/react) - freeCodeCamp
 * [React Tutorial](https://react-tutorial.app)
 * [React Tutorial](https://www.w3schools.com/react/) - W3Schools


+#### Redux
+
+* [Front End Development Libraries: Redux](https://www.freecodecamp.org/learn/front-end-development-libraries/redux) - freeCodeCamp
+
+
 ### Kotlin

 * [Kotlin tutorial](https://kotlinlang.org/docs/tutorials/)
@ -305,6 +311,7 @@
 ### Python

 * [Codecademy Python course](https://www.codecademy.com/learn/python)
+* [Data Analysis with Python Certification](https://www.freecodecamp.org/learn/data-analysis-with-python/) - freeCodeCamp
 * [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html)
 * [Learn Python](http://www.learnpython.org)
 * [Learn Python Step by Step](http://www.techbeamers.com/python-tutorial-step-by-step)
@ -314,6 +321,7 @@
 * [Python Programming Language](https://www.geeksforgeeks.org/python-programming-language/) - GeeksforGeeks
 * [Python Tutorial](https://www.tutlane.com/tutorial/python) - tutlane
 * [Python Tutorial](https://www.w3schools.com/python) - W3Schools
+* [Scientific Computing with Python Certification](https://www.freecodecamp.org/learn/scientific-computing-with-python/) - freeCodeCamp


 ### R
--- a/more/free-programming-playgrounds.md
+++ b/more/free-programming-playgrounds.md
@ -1,5 +1,6 @@
 ### Index

+* [APL](#apl)
 * [C](#c)
 * [C#](#csharp)
 * [C++](#cpp)
@ -45,6 +46,14 @@
 * [V](#v)


+### APL
+
+* [APLgolf](https://razetime.github.io/APLgolf)
+* [ngn/apl](https://abrudz.github.io/ngn-apl)
+* [TryAPL](https://tryapl.org)
+* [TryAPL Mini](https://janiczek.github.io/tryapl-elm)
+
+
 ### <a name="c"></a>C

 * [JDoodle - Online C Compiler IDE](https://www.jdoodle.com/c-online-compiler/)
@ -220,6 +229,7 @@
 * [Python.org Shell](https://www.python.org/shell)
 * [Repl.it - NiceDualPoint](https://repl.it/repls/NiceDualPoint#main.py)
 * [SoloLearn](https://code.sololearn.com/python)
+* [Try Python](https://trypython.jcubic.pl) - Jakub T. Jankiewicz


 ### R
--- a/more/problem-sets-competitive-programming.md
+++ b/more/problem-sets-competitive-programming.md
@ -11,6 +11,7 @@

 * [4Clojure](http://www.4clojure.com)
 * [A2 Online Judge](https://a2oj.com)
+* [APL Problem Solving Competition](https://contest.dyalog.com)
 * [AtCoder](https://atcoder.jp)
 * [beecrowd](https://www.beecrowd.com.br)
 * [Binary Search](https://binarysearch.com)
@ -84,6 +85,7 @@
 * [A2 Online Judge](https://a2oj.com/ps)
 * [Advent Of Code](http://adventofcode.com)
 * [Anarchy Golf](http://golf.shinh.org)
+* [APL Practice Problems](https://problems.tryapl.org)
 * [BaekJoon Online Judge](http://www.acmicpc.net)
 * [beecrowd](https://www.beecrowd.com.br)
 * [CareerCup](http://www.careercup.com)