[resources] add superhero.js

Author: hshoff

README.md

@@ -1432,6 +1432,7 @@
   - [Smashing Node.js: JavaScript Everywhere](http://www.amazon.com/Smashing-Node-js-JavaScript-Everywhere-Magazine/dp/1119962595) - Guillermo Rauch
   - [Secrets of the JavaScript Ninja](http://www.amazon.com/Secrets-JavaScript-Ninja-John-Resig/dp/193398869X) - John Resig and Bear Bibeault
   - [Human JavaScript](http://humanjavascript.com/) - Henrik Joreteg
+  - [Superhero.js](http://superherojs.com/) - Kim Joar Bekkelund, Mads Mobæk, & Olav Bjorkoy
 
 **Blogs**