Add Arquitectura Solida Java book
Update free-programming-books.md

Added in an new book D3 Tips and Tricks
learn X in Y minutes
Add "Computer Science Concepts in Scratch", M. Armoni
Add Korean free-programming-books File
Merge pull request #239 from FerPerales/master

Add Arquitectura Solida Java book
Merge pull request #240 from d3noob/patch-1

Update free-programming-books.md
Merge pull request #241 from ericguirbal/fr

Add french books about PGF/TikZ, Metapost and Asymptote
Merge pull request #242 from johand/lxinym

learn X in Y minutes
Merge pull request #243 from ericguirbal/en

Add "Computer Science Concepts in Scratch", M. Armoni
Merge pull request #244 from minsOne/master

Add Korean free-programming-books File
Add C, C++, JAVA, Javascript
Add Nodejs API ko
Add 'GNU Emacs Lisp Reference Manual'.
Merge pull request #245 from minsOne/master

Add Node.js API ko docs
Merge pull request #246 from larsbrinkhoff/master

Add 'GNU Emacs Lisp Reference Manual'.
codehero
Merge pull request #247 from johand/c_hero

codehero
Added the Programming Historian. This is another Intro Python choice
Add French book: Systèmes Informatiques, O. Bonaventure