Added a very good and complete book for Java and added iOS book
Added "Softwareentwicklung in C" to the German List as a C Programming Ressource
Merge pull request #563 from gernd/master

Added "Softwareentwicklung in C" to the German List as a C Programming R...
Alphabetizing Javascript
Book of Modern Frontend Tooling
Merge pull request #564 from MHM5000/master

Alphabetizing and adding a new book to Javascript
Add Eloquent Javascript 2nd edition
Merge pull request #565 from JIghtuse/master

Add Eloquent Javascript 2nd edition
Remove duplicates (PostgreSQL/SQL section)
Added Google Shell Style Guide as Bash Ressource in the english ressource list
Merge pull request #567 from JIghtuse/master

Remove duplicates (PostgreSQL/SQL section)
Merge pull request #568 from gernd/master

Added Google Shell Style Guide as Bash Ressource in the english ressource list
Add Greek link to README.md
Create free-programming-books-gr.md
Merge pull request #569 from mankal111/master

Created Greek link in README.md and made "free-programming-books-gr.md" with some books
Alphabetizing README
added C notes in Turkish
Merge pull request #570 from ferhatelmas/add-new-for-tr

added C notes in Turkish
Removed dead link
Added latex reference

This is one of my favourite references for latex, since it actually covers a lot of topics, and also references a lot of packages (not only core latex)