docs: transfer links for cheatsheets from books page to new cheatsheets page and add css/js cheatsheets (#4557)

* docs: add links for cheatsheets

* docs: remove links for cheatsheets from books page

* Update free-programming-books.md

* removed index.html

* Committed suggested changes
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>

* Added Blockchain Programming Book

* Added the packt link

* Added a Kotlin Playground

* The Kotlin Playground

* 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

* Markdown video course

Added free Markdown video course

* Update free-courses-en.md

* Update free-programming-books.md

Added a free markdown resource that covers all the basics concepts

Updated broken Python Programming book link with newer 3.x version check_urls=free-programming-books.md (#4486)

* Add Math for Machine Learning by Marc Peter Deisenroth, A Aldo Faisal, and Cheng Soon Ong

* try to fix build failed

* add PDF at the end of the line

* change the better link

* 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

* Added books.

* Removed a book.

* Added a book back.

* Added assembly books.

* Removed duplicate books.

* Added a book.

* Update free-programming-books.md

* [Microsoft Technologies 3, including books on Windows Azure, SharePoint, Visual Studio Guide, Windows phone development, ASP.net, etc. collection by Eric Ligman](https://blogs.msdn.microsoft.com/mssmallbiz/2017/07/11/largest-free-microsoft-ebook-giveaway-im-giving-away-millions-of-free-microsoft-ebooks-again-including-windows-10-office-365-office-2016-power-bi-azure-windows-8-1-office-2013-sharepo/)
* [Clever Algorithms](http://www.cleveralgorithms.com/nature-inspired/) - Jason Brownlee
* [CS Unplugged: Computer Science without a computer](http://csunplugged.org/books/)
* [Computer Musings](http://scpd.stanford.edu/knuth/index.jsp) (lectures by Donald Knuth)

by Dr. Charles Severance (University of Michigan)

* Added books.

* Added a PDF annotation.

* Removed trailing slash.

* Removed some things because of Travis CI warnings.

* Update free-programming-books-ta.md

* Added construction in process.

* Add Shape Up by Basecamp's Ryan Singer

* Update formatting of Shape Up entry

* Added books and book lists.

* Moved meta-list to a section.

* Moved book from Smalltalk to Scratch.

* Added alphabetical order.

* Removed the list.

* Update free-programming-books-ta.md

* Update free-programming-books.md

* Update free-programming-books-ta.md

* Add a textbook introducing emacs driven text editing

* Add a newline to match formatting

* Change ordering of tutorials to be alphabetical

- add Mostly Adequate Guide to FP

Python 3 book from DigitalOcean.

* Add Neo4j books

* Add book format

* Add authors

* Update The Art of Assembly Language

Added PDF note, updated link to a PDF for easy downloading, added author and publication year.

* Remove personal PDF link 

I removed the personal PDF link to Art of Assembly, and rolled it back to the original archive link. All my other (useful) changes remained.

* Added books in Algorithms and Competetive Programming

* Resubmitting PR with requested changes

* Add Book 'React Native Notes for Professionals'

* correct alphabetical order

* fixing linting errors

* Added The Vue.js Handbook to Vue links

Updated free programming books list to include The Vue.js Handbook

* Fix Alphabetical order

* Update free-programming-books.md

* Add resource link free e-book

* Fix lint Atomic Design

* Bug fixing alphabetic ordering

* Fix validate lint by alphabetic

* Update free-programming-books.md

* Update free-programming-books.md

* Add "What I Wish I Knew When Learning Haskell"

Follow up #3173.

* Update free-programming-books-zh.md

Follow up #3330.

* added competitive programming link

Follow up #3398.

* 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