* Added the React.js Succinctly.

* Update free-programming-books.md

* Included the Flutter, Azure Functions and Elixir Succinctly.

* Added two more books under flutter.

* Update free-courses-en.md

* Update free-courses-en.md

* Updated PHP courses

Removed: 
Ultimate PHP Basics for Absolute Beginners - no longer free

Added:
beginners course PHP Programming Language Tutorial - Full Course and more advanced course Laravel 5.8 Tutorial From Scratch

* PHP Courses added

Corrected order

* Added PHP courses

Two PHP courses added and one removed (no longer free)

* Update free-programming-books-cs.md

a new book added

* Update free-programming-books-cs.md

* A link to a book changed

Exchanging a link for a new (more direct) one.

* Add Book Professional Development GitLab Handbook

* moved to Open Source Ecosystem and fixed warning

This reverts commit 4a9f06b4.

* Update free-programming-books.md

Add gidti eBook

* Add author name

* added free react and grapQL courses

* updated the link to react course

* added required spacing

1. Remove 2 unavailable links: 《Markdown 快速入门》 (http://wowubuntu.com/markdown/basic.html)  And 《Markdown 语法说明》
2. Change [HTML5 教程] link from http://www.w3school.com.cn/html5 to http://www.w3school.com.cn/html5/index.asp

* Add Mathematics Seven Sketches in Compositionalit

* Update free-programming-books.md

* update free-programming-books-id.md nodejs

* Update free-programming-books-id.md

* Update free-programming-books-id.md

* Add Cloud Design Patterns

* fixed blanks

* Update free-courses-pt_BR.md

* Update free-courses-pt_BR.md

* Update free-courses-pt_BR.md

* Uppercase words

* Update free-courses-pt_BR.md

* free course for korean added

* link added on readme

* Making games with TypeScript

* Remove trailing slash