Merge pull request #1426 from Elfoslav/master

Added interactive JavaScript tutorial on CoderMania

free-programming-interactive-tutorials-en.md

@@ -93,7 +93,8 @@
 
 ### JavaScript
 * [Codecademy jquery track](http://www.codecademy.com/tracks/jquery)
-* [Javascript interactive tutorial](http://www.codecademy.com/tracks/javascript)
+* [Javascript interactive tutorial on CodeCademy](http://www.codecademy.com/tracks/javascript)
+* [Javascript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [Learning Advanced JavaScript](http://ejohn.org/apps/learn/)
 * [Learn JavaScript](http://www.learn-js.org/)
 * [Learn knockout.js](http://learn.knockoutjs.com)