This reverts commit 93ddfd66.

6th item is not present in the other CONTRIBUTING files

Fixes EbookFoundation/free-programming-books#5664

* Essential Nextjs Typescript Tailwind Stack

* Update free-courses-en.md

* PostgreSQL Notes for Professionals

* Edited books/free-programming-books-langs.md

* Added PostgreSQL Notes for Professionals

Added Introduction to Information Security Course

* feat: add "Programming Fundamentals" book

* feat: modify Programming Fundamentals URL
Co-authored-by: NAlexandre Vu <UVUALEX@VP1333718.ile.mtl.qc.ca>

https://yoember.com/

* Add 4 course on free-courses-id.md

* fixing linter failed on courses

* add 4 course on free-courses-id.md

* remove kotlin free course on free-courses-id.md

* remove unused line on kotlin

* add 2 kotlin resources on free-courses-id.md

* fixing number of lines on end of section

Co-authored-by: Muhamad Arif Ar Rijal <>

* Add "Data Structures and Algorithms Specialization" link

* Update free-courses-en.md

* Update free-courses-en.md

* Update free-courses-en.md

* HOWTO in Russian

* Add cross links for HOWTO-ru

* Add Go resources

* Revert "Add Go resources"

This reverts commit 6b7fd5c5041ac0d2684d646e62e8d64e8a009f18.

* Added Go resources

* edit urls

* edit urls

* Update free-courses-en.md

* Add programming books Scala Book

* Ammend PR comment to remove individual links Scala Book

* Add React cheatsheet

Add React cheatsheet and fix some misunderstandings. I think it would be better not to mix JavaScript or Python with HTML.

* update line

* fix issue

* fix issue

* Fix alphabetical order
Co-authored-by: NImVector <59611597+LuigiImVector@users.noreply.github.com>

* Update to HTML
Co-authored-by: NImVector <59611597+LuigiImVector@users.noreply.github.com>

* Update 1 book URL in free-programming-books-id.md

Update URL for Pemrograman Kompetitif Dasar

* Add new MongoDB book at free-programming-books-langs.md

Added MongoDB Notes for Professionals

* Add "Data Structures and Algorithms Specialization" link

* Update free-courses-en.md

* Update free-courses-en.md

* Added Russian CONTRIBUTING translation

* CONTRIBUTING RU: Fix requested but not required mention

* CONTRIBUTING RU: Fix пуллреквесты with пулреквесты

* Add 4 course on free-courses-id.md

* fixing linter failed on courses

* add 4 course on free-courses-id.md

* remove kotlin free course on free-courses-id.md

* remove unused line on kotlin

Co-authored-by: Muhamad Arif Ar Rijal <>

* remove dead czech books link

* add and improve czech book resources

Updating localization with GitHub Actions as described in EbookFoundation/free-programming-books#5644

* add linter action to pullrequest

* patch remaining travis refs
Co-authored-by: Neric <eric@hellman.net>

* add courses for html/css and sass/css

* add courses for html/css and sass/css

* added ucb 61a

* trying to fix the testing issue

* trying to fix lint error

* fixed it
Co-authored-by: NImVector <59611597+LuigiImVector@users.noreply.github.com>

* github error removed the whitespace
Co-authored-by: NImVector <59611597+LuigiImVector@users.noreply.github.com>

Updating localization as described in #5644

* Added Two new resources in free-courses-en.md

* Update free-courses-en.md

plz check updates in code

* Update free-courses-en.md

* Update free-courses-en.md

* Update free-courses-en.md

plz check!

* Update free-courses-en.md

* Update free-courses-en.md

Plz check! Did necessary changes here.

* Update free-courses-en.md

* Added A new tutorial resource in free-programming-interactive-tutorial-en.md

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

plz check!

* Added new resource for data science

* Add GNU Emacs refcard to more/free-programming-cheatsheets.md file under ide/editors category

* Add alphabetical order and PDF indication for the adding emacs refcard

* Added PDF indication

* Add HackThisSite in CTF and corrected address spelling

* Removed slash from the end of the URL

* add: indonesian nodejs book

* add: indonesian nodejs book

* Added Practical Python: An Immersive Python Course

* Added MongoDB Cheat Sheet

* Ordered Alphabetically

* Add GNU Emacs refcard to more/free-programming-cheatsheets.md file under ide/editors category

* Add alphabetical order and PDF indication for the adding emacs refcard

* Added PDF indication

* Add new Node js course at free-courses-id.md

* Update alphabetical order for node.js resource

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md