fix(docs): Configure docs folder with Crowdin (#40776)

docs/i18n/espanol/_sidebar.md

@@ -0,0 +1,38 @@
+- **Getting Started**
+  - [Introduction](index.md "Contribute to the freeCodeCamp.org Community")
+  - [Frequently Asked Questions](FAQ.md)
+- **Code Contribution**
+  - [Set up freeCodeCamp locally](how-to-setup-freecodecamp-locally.md)
+  - [Open a pull request](how-to-open-a-pull-request.md)
+  - [Work on coding challenges](how-to-work-on-coding-challenges.md)
+  - [Work on video challenges](how-to-help-with-video-challenges.md)
+  - [Work on the news theme](how-to-work-on-the-news-theme.md)
+  - [Work on the docs theme](how-to-work-on-the-docs-theme.md)
+- **Optional Guides**
+  - [Catch outgoing emails locally](how-to-catch-outgoing-emails-locally.md)
+  - [Set up freeCodeCamp on WSL](how-to-setup-wsl.md)
+
+---
+
+<!-- The section below should not use relative linking -->
+
+- **中文社区贡献指南**
+  - [成为专栏作者](/i18n/Chinese/news-author-application.md)
+  - [文章翻译计划](/i18n/Chinese/news-translations.md)
+  - [视频翻译计划](/i18n/Chinese/video-translations.md)
+
+<!-- The section above should not use relative linking -->
+
+---
+
+- **Flight Manuals** (for Staff & Mods)
+  - [Moderator Handbook](moderator-handbook.md)
+  - [DevOps Handbook](devops.md)
+
+---
+
+- **Our Community**
+  - [**GitHub**](https://github.com/freecodecamp/freecodecamp)
+  - [**Discourse Forum**](https://freecodecamp.org/forum/c/contributors)
+  - [**Gitter Chat**](https://gitter.im/FreeCodeCamp/Contributors)
+  - [**Discord Server**](https://discord.gg/pFspAhS)