Update README.md

added 2 new links:
* [Object Equivalency and Select Options in AngularJS ("Why Isn't the Correct Option Selected?")] (http://www.thoughtdelimited.org/thoughts/post.cfm/object-equivalency-and-select-options-in-angularjs-why-isn-t-the-correct-option-selected)
* [AngularJS End to End Testing With Protractor - Easy Set Up With Yeoman, Grunt, Bower] (http://www.codeorbits.com/blog/2014/01/26/angularjs-end-to-end-testing-with-protractor-easy-set-up-with-yeoman/)