* Update free-courses-en.md

This is a course from Harvard University's CS50 about Web Programming with Python and JavaScript.
You can know it is free  by looking at the 'CS50 Certificate' section you can read that you only need to pay for the certificate but the course is Free.

* Update free-courses-en.md

Resubmitted the PR by changing the title as given by the resource.

* Update free-courses-en.md

Resubmit PR with the title as given by the resource: CS50’s Web Programming with Python and JavaScript.
Added in Alphabetical List.
Sorry,but it is my first PR so struggling a little bit.

* Update free-courses-en.md

Added Using Python for Research course from edX Harvard.

* Added javascript data structures and algorithms

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

* Added 2 Python Courses

* Added Android Course

* Added Java Course

* Added Learning GNU C book -  check_urls=free-programming-books.md

* Added Learning GNU C book - check_urls=free-programming-books.md

* Delete dead links

* Update free-programming-books-hu.md

* Update free-programming-books-es.md

* Update free-programming-books-ja.md

* Update free-programming-books-pl.md
Co-authored-by: NLukas Kleybolte <lukas.kleybolte@hs-augsburg.de>

* Update free-programming-cheatsheets.md

Added a Cheat Sheet for Kubernetes Beginners

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md

Added Kubernetes Cheat Sheet with correct formatting

* Update free-programming-cheatsheets.md

* Update free-programming-cheatsheets.md

* Added 3 Ruby books to en.

* Added 2 Java books to en.

* Added 2 Javascript books to en.

* Added 1 ECMAscript book to en.

* Added 1 PHP book to en.

* Added a bunch of translations.

Added translations of The Hitchhiker’s Guide to Python! in French, Korean, Brazilian Portuguese and Chinese. Also rectified Django entries in chinese.

* Changes in ordering.

As directed by travis-ci

* Minor odering changes

as directed by travis-ci

* Another ordering change.

* And another one.

* Add book MySQL

* fixing

* Added course laravel

* Update free-courses-id.md

* Fixing directly YouTube

* 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 algorithms course

* update css50 course description

* update alphabetical order
Co-authored-by: NLarissa <larissa.moura@codeminer42.com>

* feat add math foundations computing book

* fix alphabetical order at free books ptbr

* add new line at the end of the file

* update the number of line between topics

* add tag to inform that book is in process
Co-authored-by: NLarissa <larissa.moura@codeminer42.com>

* Update free-programming-books adding a MATLAB Book

Add MATLAB Notes for Professionals book

* Revert "Update free-programming-books adding a MATLAB Book"

This reverts commit 56537340da39e1f20de2271bc222b2e19bc9415b.

* Add book MATLAB notes for professionals

* Fix the pattern of the MatlabBook
Co-authored-by: NGabriel Oliveira Leite <goliveil@everis.com>

* Update free-courses-en.md

This is a course from Harvard University's CS50 about Web Programming with Python and JavaScript.
You can know it is free  by looking at the 'CS50 Certificate' section you can read that you only need to pay for the certificate but the course is Free.

* Update free-courses-en.md

Resubmitted the PR by changing the title as given by the resource.

* Update free-courses-en.md

Resubmit PR with the title as given by the resource: CS50’s Web Programming with Python and JavaScript.
Added in Alphabetical List.
Sorry,but it is my first PR so struggling a little bit.

* Added Kaggle Python course

* Add Python Runestone to interactive tutorials

* added author

* Added Python and Java playground

* add space back

* lower cased name

* fixed capitalization for Java and JavaScript

* Added Rextester to R Interactive Playgrounds

* swapped order

* switched order

* Added Book MySQL

* fixing title

* fixing

* fixing

* fixing title again

* fixing again title

* add blank

* add blank line

* fixing

* delete line space

* delete line spaces

* blank lines

* re submit PR

Add a style guide that helped me with angular.js

* Added course in android development by Harry

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

Added freeCodeCamp HTML/CSS interractive tutorials course.

* Fixed alphatetical order and spaces

* fixed order

* fixed order 2.0

Co-authored-by: Nkri99 <tes444@gmail.com>

* Added Portuguese and Italian Translations.

Added Portuguese and Italian Translations of the book Python For Everybody by Dr. Charles Russell Severance

* Update free-programming-books.md

Updated the link to the latest edition.

* Update free-programming-books.md

Updated edition for the book with author and links in three places.

* Update free-programming-books.md

Added Think DSP - Digital Signal Processing in Python.

* Update free-programming-books.md

Added Think Data Structures: Algorithms and Information Retrieval in Java.

* Update free-programming-books.md

Added two new books;
Think C++: How To Think Like a Computer Scientist
Modeling and Simulation in Python

* Minor changes to adhere to Contributing.md

Thanks to @kashirash
Suggested edits to pass travis-ci and respecting markdown formatting.

Removes link to ubuntu-book.org

* 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: Namirmozafari <kavian.amirmozafari@student.sharif.edu>

* Add Full Stack Open course [fi]

* Update free-courses-fi.md
Co-authored-by: Nkadhirash <kadhirash@gmail.com>
Co-authored-by: Nkadhirash <kadhirash@gmail.com>

* Added Blockchain Programming Book

* Added the packt link

* Added a Kotlin Playground

* The Kotlin Playground

* Added a Flutter Playground

* Removed the Leadin Slash

* add typescript

* Update free-courses-id.md

* Update free-courses-id.md

* Update free-courses-id.md

This course is on Udacity and is taught by Google Developer.

* add python di prograte course in bahasa

* add c# course in bahasa

* delete python no playlist course

* fixing index c# in course bahasa

* add ctflearn in probsets

* Remove trailing slash in CTFlearn

* reordering menu

* Add MongoDB cheatsheet

I couldn't find this covered in an existing PR, linked cheatsheet is my current go-to.

* Add new section to Index

* Appease linter

* podcst for data science added: not so standard deviations

* Update free-podcasts-screencasts-en.md

removing the trailing slash
Co-authored-by: Nkadhirash <kadhirash@gmail.com>
Co-authored-by: NNaren Bakshi <narenbakshi@Narens-Air.fios-router.home>
Co-authored-by: Nkadhirash <kadhirash@gmail.com>

* add link to cheatsheets

* fix ordering in courses-id

* Added vue.js course pt_BR

* Apply MR changes
Co-authored-by: NVictor Rafael <dev.04@conlifebank.com.br>

Add Thai courses (free-courses-th.md) in list