* Added 4 Courses

* Update free-courses-de.md

* Changed Category and Title

Changed title to a more generic one and changed name of one course to the original one

* Changed alphabetical order

* Changed alphabetical order

Co-authored-by: Nsarit <sarit.pinhas@duda.co>

Co-authored-by: Nsarit <sarit.pinhas@duda.co>

* Update free-courses-en.md

Added Flexbox & CSS Grid free video resources to the repo

* Update free-courses-en.md

* Update free-courses-en.md

Removed the trailing slashes from the root domain

* Update free-courses-en.md

Added free Javascript30 course from Wesbos

* Add "Frontend Weekend" podcast

* Updated "Frontend Weekend" podcast group

* Adicionando curso de python

* Adicionando curso de programação python

* Adicionando curso de programação python e corringo erro das linhas

* Update free-courses-pt_BR.md

* Update free-courses-en.md

* Update free-courses-en.md

* Update free-courses-pt_BR.md

* Update free-courses-pt_BR.md

* added courses

* space fixed

Co-authored-by: Nsarit <sarit.pinhas@duda.co>

* Update problem-sets-competitive-programming.md

* Update problem-sets-competitive-programming.md

* Update problem-sets-competitive-programming.md

* Update free-programming-books-th.md

* Fixed order & Added more info

* Fixed format of entry

* Change book from C -> Java, for safer URL

* Try to fix grammar.

* Try to take-out "special char" from the name

* Fixed newline

* Added free Dutch programming courses for Java and PHP

* Added free Dutch programming books for Java and PHP

* Added free Dutch programming courses for Java and PHP

* Added free Dutch programming books for Java and PHP

* Update free-courses-pt_BR.md

* Fix alphabetical order

* Added new React books in Russian

* Alphabetized

* Removing Изучаем React

* Update free-courses-en.md

Added Flexbox & CSS Grid free video resources to the repo

* Update free-courses-en.md

* Update free-courses-en.md

Removed the trailing slashes from the root domain

Added one course link on machine learning topic

* Add Git & Github tutorial (screencast)

* Correcting number of blank lines and alphabetical order

* Adding new alphabetical order

* Improving order in alphabetical

* Solving issue with index (replacing with asterisks)

* Removing extra character to  C#

* Adding author to the resource

* Adding alphabetical order

* Added Open Source Reading Materials and Videos of Python for Everybody offered by Coursera

* Removed Coursera link and changed resource title

* Alphabetical ordering

* create HOWTO.pt_br.md

* add spaces and chage order

* add links to other HOWTOs

* add space

* add Portuguese HOWTO to the links

* add Portuguese HOWTO to the links

* add Portuguese HOWTO to the links

* add Portuguese HOWTO to the links

* correct file name

* correct link

* correct link

* correct link

* correct link

* Stanford Java course link

* put the new link alphabetically

* Add courses from metarhia organization

* Alphabetic order

* Add angular favorite resources from hacktoberfest 2019

* Add author first name and last name

* Add angular documentation in Russian

* Fix space between a new section and last link

* Remove wrong material
Co-authored-by: Nroman pedchenko <roman.pedchenko@dev-pro.net>

* add course about LaTeX (es)

* added markdown tutorial (es)

* fix issues with CI

AIcrowd enables data science experts and enthusiasts to collaboratively solve real-world problems, through challenges.

Co-authored-by: NSinSentido <sinsentido@localhost.localdomain>

Hogyan gondolkozz úgy, mint egy informatikus:Tanulás Python 3 segítségével python book added to list of Hungarian programming books. (#4381)

* Update free-programming-books.md

Added in 3 free programming books:
[Haskell Notes for Professionals](https://goalkicker.com/HaskellBook/) (PDF)
[Linux commands Notes for Professionals](https://goalkicker.com/LinuxBook/) (PDF)
[JavaScript Notes for Professionals](https://goalkicker.com/JavaScriptBook/) (PDF)

* Update free-programming-books.md

* Update free-programming-books.md

* Update free-programming-books.md

Add The Joy of Cryptography (2020) book to the mathematics section.

* Update free-programming-books.md

Add Haskell Notes for Professionals

* Update free-programming-books.md

Add Linux commands Notes for Professionals

* Update free-programming-books.md

Add JavaScript Notes for Professionals

* Update free-programming-books.md