* Add beginner youtube tutorial by freecodeCamp

* Add two kotlin courses

* Update format convention - fix author credit

* Update free-courses-en.md
Co-authored-by: NSeth <seth@elypia.org>

* Move existing course from android to kotlin section
Co-authored-by: NSeth <seth@elypia.org>

* [Introdução a Algoritmos e Programação](http://www.ferrari.pro.br/home/documents/FFerrari-CCechinel-Introducao-a-algoritmos.pdf) - Fabricio Ferrari e Cristian Cechinel (PDF)

* Add DenoJS Beginner Course

Add DenoJS section and a free Deno Beginner Course

* fix the order

* fix CI lint error

* Add author name and email required

* Fix formatting for the required field

* Update free-programming-books.md

* Update free-courses-en.md

* Update free-programming-books.md

* Apply suggestions from code review
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>

adding "Programmation en Langage C et Systèmes Informatiques"

* Added js regex cheatsheet

* Update free-programming-cheatsheets.md
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>

* Add laravel course from Wahidev Academy

* Added Basic React JS from Wahidev Academy

* [Revised] added Laraver course for beginner from Wahidev Academy

* Add basic react native course from Wahidev Academy in Bahasa

* Add basic react native course from Wahidev Academy in Bahasa Indonesia

* Add react native course based project from Wahidev Academy in bahasa

* Adds The Site Reliability Workbook

* Sorts new book

* Adds back empty line

add elasticsearch course

* added section and a book for blazor

* Update free-programming-books.md
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>

- Algoritmos e Estruturas de Dados com Java
 - Lab. Java com Testes, JSF e Design Patterns
 - Web ágil com VRaptor, Hibernate e AJAX

* Added PHP programming logic course in PT_BR

* Update free-courses-pt_BR.md

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

* Update free-programming-interactive-tutorials-en.md
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>

* Adding c++ cource 

* adding course c++ at Stepik

* Fix passing travisci

Add blank line after Index section

* Update free-courses-fa_IR.md

* Add Sokan Academy Courses
* Remove "/" from the end of some links
* Remove an English Course (Exists in "free-courses-en" from the main website)
* Add some courses of Maktabkhooneh

* Update free-courses-fa_IR.md

Fix the incorrect number of blank lines and alphabetical ordering

* Add laravel course from Wahidev Academy

* Added Basic React JS from Wahidev Academy

* [Revised] added Laraver course for beginner from Wahidev Academy

Added free microservices course in free-courses-id.md

* Update mathematica links

Addresses #3672 for wolfram/mathematica link

* update sonatype eclipse book

* update mysql tutorial link

* update ravichaganti powershell book

* update single devops collective book

* fix mysql tutorial formatting

* reorder mysql 8.0 tutorial

* update leanpub requirements

* include devops collective author

Addresses #3189, updates the WIP version of the standard to the C17/C18 draft. I was hesitant about using a web.archive link but it seems widely accepted (see Wikipedia https://en.wikipedia.org/wiki/C18_(C_standard_revision), and ISO-9899.info http://www.iso-9899.info/wiki/The_Standard)

* Add Docker courses from #3856 issue, check_urls=free-courses-en.md

* Reword titles to playlist titles

* Add Turkish free courses

* Add Turkish free courses

* Add Turkish courses to README.md

* Added Blockchain Programming Book

* Added the packt link

* Added a Kotlin Playground

* The Kotlin Playground

* Added a Flutter Playground

* Removed the Leadin Slash

* Added Ruby Playground

* Added a new line at the end of free programming playgrounds

* Fixed the spacing in free-programming-books-fa_IR.md

* Fixed More errors in the above file

* Errors fixed in free-programming-books-fa_IR.md

* Some more changes

* Restored the previous farsi file

* Added an Elm Playground

* adding course java with certificate

* changing lowercase letter on 'youtube'

- Remove repeated Sails.js entry from index;
- Change Assembly position to place in alphabetical order

* Delete dead links

* Add React book in German

* add Author

* Fix linting error
Co-authored-by: NLukas Kleybolte <lukas.kleybolte@hs-augsburg.de>