create separate md file for interactive materials

free-programming-interactive-tutorials.md

+###Clojure
+* [Clojure Koans](http://clojurekoans.com/)
+* [ClojureScript Koans](http://clojurescriptkoans.com/)
+
+
+###CoffeeScript
+* [Smooth CoffeeScript, Interactive Edition](http://autotelicum.github.io/Smooth-CoffeeScript/interactive/interactive-coffeescript.html)
+
+
+###Git
+* [Git Immersion](http://gitimmersion.com)
+* [Try Git](http://try.github.io)
+
+
+###Go
+* [The Go Tutorial](http://golang.org/doc/go_tutorial.html)
+* [Go by Example](https://gobyexample.com/)
+
+
+###HTML / CSS
+* [HTML Canvas Deep Dive](http://joshondesign.com/p/books/canvasdeepdive/toc.html) - Josh Marinacci
+
+
+###JavaScript
+* [Eloquent JavaScript](http://eloquentjavascript.net/) - Marijn Haverbeke
+
+
+###Lisp
+* [Lisp Koans](https://github.com/google/lisp-koans)
+
+
+###MATLAB
+* [Interactive Tutorials for MATLAB, Simulink, Signal Processing, Controls, and Computational Mathematics](http://www.mathworks.com/tutorials)
+
+
+###NoSQL
+* [MongoDB Koans](https://github.com/chicagoruby/MongoDB_Koans)
+
+
+###Python
+* [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html)
+* [Python Koans](https://github.com/gregmalcolm/python_koans)
+
+
+###Ruby
+* [RubyMonk - Interactive Ruby tutorials](http://rubymonk.com)
+* [CodeCademy Ruby](http://www.codecademy.com/tracks/ruby)
+* [Try Ruby](http://tryruby.org/)
+* [Ruby Koans](http://www.rubykoans.com/)