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

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

* Add 4 books

* Alphabetic order and 2 more books

* Update free-programming-books-ru.md

* Update free-podcasts-screencasts-ru.md

* Update free-podcasts-screencasts-ru.md

* Update free-programming-books-ru.md

* Update free-programming-books-ru.md

* add required space, add clojure to index

* add pdf indication

* remove trailing slashed, fix "alphabetical" order

The thing that was confusing us is that the С was capitalized, so its code point was before lower case п, but the sorting is case insensitive. Oh my. This is why we need a robot that fixes these things.

* trailing slash

* Create free-programming-books-bl.md

* add spaces to satisfy linter

* ditto

* Add Scastie

* Fix 'Remove trailing slash' warning

* Uniform treatment of Leanpub books

free Leanpub books come in two flavors
- free to read online without an account or email address
- free to read after a "purchase" with a minimum price of "Free!" A
valid email is requested to create an account, but you can read   or
download even if the email is bogus.

After some consideration, I'm proposing that the free-to-read books
should be without any annotation, and the free-after-"purchase" books
be denoted as *(Leanpub Account or valid email requested)* . This PR
implements that for the english lists.

Comments requested!

* add required space

Book is not free. It's a minimum of $4 https://leanpub.com/whatsnewinjava8 .

Added reviewed books compiled from from StackOverflow documentation

* For people looking at the file listing for the English list. (This redirect may eventually swap contents with the primary /free-programming-books.md to put English on an equal footing with the other languages.)

* Link fixed. Comment added.

* Please add Django 2.0 Online Book

I would like to add this online book of Django 2.0 to the list.

Thanks in advance.

* Django 2.0 Tutorial for Beginners

Removed slash "/" at the end of link.
(Although several other links contain it)

Added some great free Portuguese screen-casts courses which I've used in past and some Brazilians have been using.

* Added JavaScript/Redux 

1. Added new section to JavaScript (Redux) 
2. Add the "The Complete Redux Book" to the list

* add required spaces, add account required notation

* Please add a new Python Book

I found this new book just released in January 2018.
It is a compilation from StackOverflow documentation and is freely available.

Thanks.

* Please add new Python book

Changes made.

* nit

* add new Podcasts

* alphabetical order

* Add some Vietnamese courses.

* Update free-courses-vi.md

* Add GLib/GTK+ Development Platform book.

The books is licensed under a Creative Commons Attribution-ShareAlike 4.0
International License:
https://creativecommons.org/licenses/by-sa/4.0/

* Put link in order.

* Add pdf indicator.

"Java: A Beginner's Guide" is just the first chapter of a book
"NIO Framework" is a 6 page paper, also not a book

It pointed to a tutorial and not to the book.

remove the link to "Operating Systems Concept 9th edition" because it is not a book, but a bunch of slides (#2674)

* Update free-courses-en.md

Added a Python online resource under the Python course section.

* Update free-programming-books.md

Added techbeamers to meta-list section.