Update README.md

Added:
* [Easy Animations For AngularJS With Animate.css] (http://odetocode.com/blogs/scott/archive/2014/02/25/easy-animations-for-angularjs-with-animate-css.aspx)
* [Conditionally Apply a CSS Class with AngularJS] (http://www.ecofic.com/about/blog/conditionally-apply-a-css-class-with-angularjs)
* [Test Filters in AngularJS] (http://www.ecofic.com/about/blog/test-filters-in-angularjs)