Merge pull request airbnb#370 from ManojAMK/ManojAMK-patch-1

Updated JavaScript books list: add Eloquent

Author: ljharb

README.md

@@ -2000,6 +2000,7 @@
   - [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**