* Add Full Stack open course

Profundización en el desarrollo web moderno.
Full Stack open 2021

https://fullstackopen.com/es/
Universidad de Helsinki, Houston Inc., Terveystalo, Elisa, K-ryhmä, Unity Technologies, Konecranes

* Update Full Stack open creators

* Add FreeRTOS book

Resolves part of EbookFoundation/free-programming-books/issues/5466

* Move FreeRTOS book to Embedded Systems

Resolves part of EbookFoundation/free-programming-books#5466

* Add DigiKey's RTOS course

Resolves part of EbookFoundation/free-programming-books#5466

* Fix obsolete Microsoft edX courses

Solves part of EbookFoundation/free-programming-books#5112

* Fix with stable alternative for "Hg Init" guide

Solves part of EbookFoundation/free-programming-books#5112

@hginit https://github.com/hginit/hginit.github.ioCo-authored-by: Nhginit <hginit@captnemo.in>
Co-authored-by: Ncaptn3m0 <github.contact@captnemo.in>

* Use wayback machine to recover FindLectures.com

Solves part of EbookFoundation/free-programming-books#5112

Only works first page of mirror
Co-authored-by: Nhginit <hginit@captnemo.in>
Co-authored-by: Ncaptn3m0 <github.contact@captnemo.in>

Add two new courses

* Update free-courses-pt_BR.md

Added object oriented programming course by Gustavo Guanabara from Curso em Video channel.

* Change to playlist link

* Update free-courses-ru.md

Add three new courses

* Update free-courses-ru.md

Added authors of courses

* Updated a Java Course

* Update free-courses-en.md

* Add Android course (Java)

* Add Android italian course

* Fix blank space error

* Added more Python resources, updated links/info

* Corrected sorting order

* Removed courses from book list

* Added two Python courses, http to https

* add JavaScript online course

* change course to playlist

* change marker
Co-authored-by: NCipher <cipher.team9@protonmail.com>

Edit Author's Name Vietnamese
Edit Courses's Name
Add More Courses

* Add Some Arabic Courses

* make travis happy

* fixed last travis issues

* change titles

Add new Java course from Stepik

* add more courses vietnamese

* fix link youtube playlist

* Update free-courses-pt_BR.md

Add free course Python básico from Solyd (https://solyd.com.br/treinamentos/python-basico/)

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

* Add Italian course "Programmazione Basic Commodore 64"

* Move Retrocomputing course under "Miscellaneous" category

* Add Italian video course about Docker

* Fix typo

* Fix Docker course name

* adding web dev curriculum, 24 lessons

* fix

* alphabetize added language courses

Our linter had not been looking at these languages

* fix books files

* casts and more

* Add Polish books

* Switch some books to courses

* Fix alphabetical ordering in courses

* Update Some courses

* Fix readirect links

* Update Linespace

* Fix Rocketseat description

* Alphabetic order

* Add data visualization course 2020

* Sorted and removed YouTube tags

Add new Russian Ruby course

* reorganize files

1. make it easier to find files
2. reduce scrolling to get to README on main view of repo

* remove tr.txt again