#### What roadmap does this PR target?
- [ ] Code Change
- [x] Frontend Roadmap
- [ ] Backend Roadmap
- [ ] DevOps Roadmap
- [ ] All Roadmaps
- [ ] Guides
#### Please acknowledge the items listed below
- [x] I have discussed this contribution and got a go-ahead in an issue before opening this pull request.
- [x] This is not a duplicate issue. I have searched and there is no existing issue for this.
- [x] I understand that these roadmaps are highly opinionated. The purpose is to not to include everything out there in these roadmaps but to have everything that is most relevant today comparing to the other options listed.
- [x] I have read the [contribution docs](../contributing) before opening this PR.
#### Enter the details about the contribution
I am suggesting the addition of PWA tutorials from MDN Web Docs. Apart from basic introduction to PWAs, it has numerous helpful How-to's such as using client-side storage with IndexedDB and Web Storage API, making mobile-first and installable PWAs, enabling "add to home screen", using notifications and push API etc.
#### What roadmap does this PR target?
- [ ] Code Change
- [x] Frontend Roadmap
- [ ] Backend Roadmap
- [ ] DevOps Roadmap
- [ ] All Roadmaps
- [ ] Guides
#### Please acknowledge the items listed below
- [x] I have discussed this contribution and got a go-ahead in an issue before opening this pull request.
- [x] This is not a duplicate issue. I have searched and there is no existing issue for this.
- [x] I understand that these roadmaps are highly opinionated. The purpose is to not to include everything out there in these roadmaps but to have everything that is most relevant today comparing to the other options listed.
- [x] I have read the [contribution docs](../contributing) before opening this PR.
#### Enter the details about the contribution
I have added a description and several resources that I have used myself and found useful in learning the topic of PWA performance analysis.
-1st link is from google web.dev and provides several articles on what is speed, how does it matter and how one can measure and optimize the performance of PWAs.
-2nd link gives detailed explanation on what is PRPL pattern and how it works.
-3rd resource is from google web.dev and teaches how to implement PRPL pattern to instantly load PWAs
-4th resource is from google web.dev and gives a detailed account about RAIL model and its implementation
-5th resource is from freecodecamp and gives an introduction to Chrome Lighthouse
-6th resource is from PWA training module of Google Developers (Web)
-7th resource is a 5 minute tutorial on how to use Lighthouse to audit your PWAs
I was unable to find a resource on devtools that is specifically catered to PWAs compared to general website performance analysis. Will add later if needed and this contribution gets approval!
* Add the Vox video "How Does the Internet Works?"
As the article that describes how the internet works, Vox also have a very intersing video about the topic. It's a great production that covers the whole process among sending and receiving a picture between mobile phones.
* Update content/roadmaps/100-frontend/content/100-internet/100-how-does-the-internet-work.md
Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>
* Added resources for Basics of SEO in Frontend Development Roadmap
* Update content/roadmaps/100-frontend/content/101-html/105-seo-basics.md
Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>
* Added content for Pick a Framework
* Update content/roadmaps/100-frontend/content/111-pick-a-framework/readme.md
Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>
* Added Resources for Less
* Update content/roadmaps/100-frontend/content/109-css-preprocessors/102-less.md
* Update content/roadmaps/100-frontend/content/109-css-preprocessors/102-less.md
Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>
