* add The Pharo MOOC

* fix formatting for pharo section

* add pharo to index

* add nand2tetris

* fix formatting for nand2tetris

Add javascript course from Florin Pop Youtube channel.

* Added new web development course

* Update free-courses-en.md

* Added new language to "Podcast - Screencast"

* Create free-podcasts-screencasts-si.md

* Add Object-Oriented JavaScript course

* Move entry to correct position

* Update course info
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Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* Added Blockchain resources to free-courses-en

Added Blockchain resources to free-courses-en

* Update free-courses-en.md

* Added Blockchain resources to free-courses-en

Made changes to the resource(s) about Blockchain in free-courses-en.md

* New changes made to Blockchain resources

added the cryptozombies link which i previously deleted by mistake
changes the Playlist text to YouTube Playlist

* Update courses/free-courses-en.md
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* Update courses/free-courses-en.md
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* Update courses/free-courses-en.md
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* add creator
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Co-authored-by: NEric Hellman <eric@hellman.net>
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* Add udacity course Offline Web Applications

* Move entry to correct position

* Add author info
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Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* Added Distributed Systems and Bash Shell Scripting in english

* Added Distributed Systems tutorial

* Add RxJS course "Asynchronous Programming: The End of The Loop"

* remove link to author's social

* remove egghead.io site link
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* Update free-courses-en.md

* remove subcategory for cycle js

Moved 
[Solidity Tutorial - A Full Course on Ethereum, Blockchain Development, Smart Contracts, and the EVM](https://www.youtube.com/watch?v=ipwxYa-F1uY) - Gregory McCubbin @ freeCodeCamp.org & Dapp University (YouTube)
to courses from tutorials,
Thanks :)

* Add Python 3 Book

Python 3 book from DigitalOcean.

* Update list to add learning Processing resource

Reattempted.

* Update podcasts-screencasts-en.md

Changed playlist and added the contributor name.

* Alphabetize Processing playlists

Alphabetize the processing playlists added.

* Removed Processing Resource

Removed Processing YouTube links from screencasts.

* Updated free-courses with Processing Resource

Added processing resource in free courses list.

* Update free-courses-en.md Readme

Added Deno course from freeCodeCamp.

* Update free-courses-en.md

Removed Deno resource from master branch.

* Update free-courses-en.md

Add Deno course from FreeCodeCamp.

* Add Android App Development by ProgramMe Programming

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

* Update free-courses-en.md

* Update courses/free-courses-en.md
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* Add DSA in Swift by Udacity

* Add DSA in Swift by Udacity

* Added HTML5 and CSS3 Fundamentals course

* Update free-courses-en.md

* Update free-courses-en.md

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

* Update free-courses-en.md

updated order

* Update free-courses-en.md

* Update free-courses-en.md

Update playlist url

* Added free-programming-playgrounds for Solidity

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

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

* Added free-programming-cheatsheets for Solidity

* Added free-courses-en for Blockchain

* Update free-courses-en.md

* Update free-courses-en.md

* Update free-courses-en.md

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md

* Update free-courses-en.md

* 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
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>
Co-authored-by: NEric Hellman <eric@hellman.net>
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* R Basics - R Programming Language Introduction

* Update courses/free-courses-en.md
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* DSA course of kunal kushwaha added

* Update courses/free-courses-en.md
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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

* Update courses/free-courses-en.md
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Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* 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

* Update courses/free-courses-en.md

Adding instructor
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* 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

* Update free-courses-en.md

* Update free-courses-en.md

* added with alphabetical order

* Update free-courses-en.md