Update free-programming-books.md

Adding RESTful Web Services book
Blender 3D: Noob to Pro
Merge pull request #486 from Erendis/patch-1

Blender 3D: Noob to Pro
Added 'Prolog for Programmers'

A book by Feliks Kluźniak, Stanisław Szpakowicz & Janusz S. Bień, first published in 1985.
Merge pull request #487 from miku/master

Added 'Prolog for Programmers'
Added: Data Jujitsu, jQuery Novice to Ninja, Ad Hoc Data Analysis From The Unix Command Line
Merge pull request #488 from TobyRoseman/master

Added: Data Jujitsu, jQuery Novice to Ninja, Ad Hoc Data Analysis From T...
Added HTML Canvas Deep Dive
Merge pull request #490 from martinvd/patch-2

Added HTML Canvas Deep Dive
Added "Kanban and Scrum - making the most of both"
Merge pull request #491 from seralf/master

Added "Kanban and Scrum - making the most of both"
Fixes #489
Correct typo
Spanish LaTeX Index Markdown Issue
Merge pull request #492 from MHM5000/master

Spanish LaTeX Index Markdown Issue
Added Basic, Fortran and xBase categories.

With a few links each to kick starting them.
Update free-programming-books.md
Merge pull request #493 from DrDub/master

Added Basic, Fortran, xBase Books and Cats. + 1Fix
Update free-programming-books-ko.md

fix indent
Merge pull request #494 from minsOne/patch-1

Update free-programming-books-ko.md