* Add Android App Development by ProgramMe Programming

* Update Instructor's Name: Android App Course
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* added Communicating using Markdown Course

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* Add DSA in Swift by Udacity

* Add DSA in Swift by Udacity

* Added HTML5 and CSS3 Fundamentals course

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Added an awesome youtube video that explains self supervised learning in computer vision

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updated order

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Update playlist url

* Added free-programming-playgrounds for Solidity

* Added free-programming-interactive-tutorials-en for Solidity

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* Added free-programming-cheatsheets for Solidity

* Added free-courses-en for Blockchain

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* Update free-programming-cheatsheets.md

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* Update free-programming-playgrounds.md

* Update free-programming-cheatsheets.md

* Update free-programming-interactive-tutorials-en.md

* Update free-programming-playgrounds.md

* Recover deleted Manoj Ramesh resource
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* Update more/free-programming-playgrounds.md
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* add creator
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Co-authored-by: NEric Hellman <eric@hellman.net>
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* R Basics - R Programming Language Introduction

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* DSA course of kunal kushwaha added

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* Reordering done
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* added course learning material from course category in english

* updated checks

* updated checks-2

* updated checks-3

* updated checks-5

* updated checks-6

* updated checks-4

* updated to playlists

* updated angular to playlists

* removed mooc-class central

Adds "Learn Git with Bitbucket Cloud"

In this Kotlin course, user will get familiarized with the language syntax, concepts, and libraries, as well as with the basics of OOP.

* Introduction To Python Programming

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* add kubernetes academy course

* fix new line after kubernetes academy course

* fix kubernetes academy course format

* fix kubernetes academy course with specific course

* Adding AI course in free-courses-en.md

Artificial Intelligence on Google Cloud Platform Youtube Playlist

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Adding instructor
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* refactor(courses): Add AI category

Add  `Artificial Intelligence` section suggested in https://github.com/EbookFoundation/free-programming-books/pull/5569#issuecomment-930197282

Resolves EbookFoundation/free-programming-books#5569
Locks Resolves EbookFoundation/free-programming-books#5569

* refactor(courses): Move `Elements of AI`

Moved to  `Artificial Intelligence` section suggested in https://github.com/EbookFoundation/free-programming-books/pull/5569#issuecomment-930197282

Resolves EbookFoundation/free-programming-books#5569
Locks Resolves EbookFoundation/free-programming-books#5569

* refactor(courses): Movings to `Artificial Intelligence`

Moves some resources related with topic found in `Misc` and `Data Science`
It consolidates this section 🚀

Improves EbookFoundation/free-programming-books#4579

* fix(courses): Give credits to instructor/platforms

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* added with alphabetical order

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* Added two Electronjs courses Resolves #5928

* updated links and category

* add svelte interactive tutorial

* add svelte courses

* add svelte to index

* move svelte resource to books listing

* move svelte resource to courses

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* Adding Database Systems free Course

Add youtube video's URL with Database Systems - Cornell University Course (SQL, NoSQL, Large-Scale Data Analysis) subject that created by Professor Immanuel Trummer, PhD and uploaded in the  freeCodeCamp.org youtube channel

* Update courses/free-courses-en.md with better name resources and simpler attributions

Implement the advice about name resources and complex attributions.
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* Adds Python course from NPTEL

* fixed hyperlink bug
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One of Udemy URL to the course is no longer accepting enrollments.

* Added course for Data Structures

* Added AI Course.

CS50’s Introduction to Artificial Intelligence with Python

* Fixed typo in course author's name.

* Updated course link to the latest version (2021)

This is CS50x

* update free-Courses-en

updated react native playlist

* update-free-courses-en

updated reactnative playlist

* Update courses/free-courses-en.md

Update courses/free-courses-en.md suggestion added
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