* Fix Raspberry Pi books

* Fix bit.ly links

Add free machine learning course.

* Update free-programming-books-ru.md

* Update free-programming-books-ru.md

* Replace Dive into HTML5 link

The old link (http://diveintohtml5.info/) returns Access Denied.

* remove trailing slash

* Add some more information to some Bash books

* Finish adding info to bash section

* Update free-programming-playgrounds.md

* remove trailing slash

* Update python books in Turkish

* add authors, fix order

* same for es, pt, se

* fix alphabetization

* another try

* trial and error

#2494

* add Peter Wayner's Free for All
* add some author names in open source ecosystem section
* add some subtitles

to close #2491

* Update free-podcasts-screencasts-ru.md

* fix alphabetic order

* one more try

* fixed the last two misplaced authors

* Added "A Brief Introduction to Machine Learning for Engineers"

Link to page in arXiv, posted by the author of the book: https://arxiv.org/abs/1709.02840

* Added author to "A Brief Introduction to Machine Learning for Engineers"

* Added OWASP Testing Guide

* Added format type to OWASP Testing Guide

An incremental in-depth tutorial about building Java back-end web applications with Java Server Faces (JSF) as the user interface technology and the Java Persistence API (JPA) for object-to-storage mapping and storage management.

Ref:- http://web-engineering.info/tech/JavaJpaJsf/book/index.html

Author:- Mircea Diaconescu and Gerd Wagner

* Update free-programming-books.md

C Elements of Style was published by M&T books in 1992. This book covers only the C language and is a bit out dated. However it still contains a lot of good advice.

* add author

* Added "Türkçe Git 101"

* add back required space

* add go in action notes

* fix go in action notes title

* fix Alphabetical ordering

* fix zh charter order

* remove non-english resource

The old links aren’t valid anymore