* Add Persian free courses file
* Add two new C and C++ courses
* Add two new php courses
* Add two new Machine Learning courses
* Add two new Java courses
* Add a Python course
* Add two new Linux courses
* Fix a Python's course link
* Add the author's name
* Convert the author's name to English
* Add Persian courses link
* Fix number of blank and ordering
* Remove course from books file
* Add Laravel section
* 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
* Add two machine learning course for persian
* Add two machine learning course for persian
* Add two persian C courses
* Add two persian Laravel courses
* Add two persian Java courses
Co-authored-by: amirmozafari <kavian.amirmozafari@student.sharif.edu>
* Add "Symfony 5: The Fast Track" book (en)
* Add "Symfony 5: The Fast Track" book (es)
* Add "Symfony 5: The Fast Track" book (de)
* Add "Symfony 5: The Fast Track" book (ar)
* Add "Symfony 5: The Fast Track" book (fa)
* Add "Symfony 5: The Fast Track" book (ja)
* Add "Symfony 5: The Fast Track" book (ru)
* Add "Symfony 5: The Fast Track" book (it)
* Add "Symfony 5: The Fast Track" book (nl)
* Add "Symfony 5: The Fast Track" book (pl)
* Add "Symfony 5: The Fast Track" book (pt_BR)
* Add "Symfony 5: The Fast Track" book (ro)
* Add "Symfony 5: The Fast Track" book (zh_CN)
* Add "Symfony 5: The Fast Track" book (fr)
* Remove redundant line breaks
Kavian AmirMozafari
Harshit-lab
Siddharth Kumar
Venji10
Oleksandr Redko
Spencer Davies
Borislav Kosun
Jack Dolgin
Jafar Rezaei
AmirHossein Goodarzi
borgified
Saeid Darvishi
Leonardo Rifeli
Victor Felder
Craig Davison
anio
MJ Vakili
Milad Khajavi
Christoph Uschkrat
Mohammad Hossein Mojtahedi
Amin Bandali
matysanchez
jgpacker
Eric Guirbal