docs(readme): add link to ng2-restangular

Closes #1318

README.md

@@ -10,12 +10,12 @@
   <img src="http://jpillora.com/github-twitter-button/img/tweet.png"></img>
 </a>
 
-Restangular is an AngularJS service that simplifies common GET, POST, DELETE, and UPDATE requests with a minimum of client code.
-It's a perfect fit for any WebApp that consumes data from a RESTful API.
+Restangular is an AngularJS service that simplifies common GET, POST, DELETE, and UPDATE requests with a minimum of client code. It's a perfect fit for any WebApp that consumes data from a RESTful API.
 
-Try the [live demo on plunkr](http://plnkr.co/edit/8qrGeE?p=preview). It uses the same example as the official [Angular Javascript Project](http://angularjs.org/#wire-up-a-backend), but with Restangular!
+**Note This version of Restangular [only supports Angular 1](#supported-angular-versions). For an Angular 2 version of Restangular, check out [ng2-restangular](https://github.com/2muchcoffeecom/ng2-restangular).** It's a separate project with different maintainers, so issues regarding ng2-restangular should be reported [over there](https://github.com/2muchcoffeecom/ng2-restangular/issues) :wink:
+
+Learn Restangular! Try the [live demo on plunkr](http://plnkr.co/edit/8qrGeE?p=preview). It uses the same example as the official [Angular Javascript Project](http://angularjs.org/#wire-up-a-backend), but with Restangular! Or watch [a video introduction of a talk I gave at Devoxx France](http://www.parleys.com/play/535a189ee4b0c5ba17d43455/chapter1/about) about Restangular.
 
-Watch [a video introduction of a talk I gave at Devoxx France](http://www.parleys.com/play/535a189ee4b0c5ba17d43455/chapter1/about) about Restangular.
 
 #Table of contents