Merge pull request airbnb#262 from marcel-me/master

Add Eloquent JavaScript to books

Author: goatslacker

README.md

@@ -1577,6 +1577,7 @@
   - [JSBooks](http://jsbooks.revolunet.com/) - Julien Bouquillon
   - [Third Party JavaScript](http://manning.com/vinegar/) - Ben Vinegar and Anton Kovalyov
   - [Effective JavaScript: 68 Specific Ways to Harness the Power of JavaScript](http://amzn.com/0321812182) - David Herman
+  - [Eloquent JavaScript](http://eloquentjavascript.net) - Marijn Haverbeke
 
 **Blogs**