Update README.md

Don't tell people to build angular from source themselves. Our examples are not well-constructed for users to try them out.

Author: alexeagle

README.md

@@ -4,12 +4,15 @@ Angular [![Build Status](https://travis-ci.org/angular/angular.svg?branch=master
 Angular is a development platform for building mobile and desktop web applications. This is the
 repository for [Angular 2][ng2], both the JavaScript (JS) and [Dart][dart] versions.
 
-Angular 2 is currently in **Alpha Preview**. We recommend using Angular 1.X for production
+Angular 2 is currently in **Developer Preview**. We recommend using Angular 1.X for production
 applications:
 
 * [AngularJS][ngJS]: [angular/angular.js](http://github.com/angular/angular.js).
 * [AngularDart][ngDart]: [angular/angular.dart](http://github.com/angular/angular.dart).
 
+## Quickstart
+
+[Get started in 5 minutes][quickstart]
 
 ## Setup & Install Angular 2
 
@@ -22,32 +25,11 @@ Want to file a bug, contribute some code, or improve documentation? Excellent! R
 guidelines for [contributing][contributing].
 
 
-## Examples
-
-To see the examples, first build the project as described
-[here](http://github.com/angular/angular/blob/master/DEVELOPER.md).
-
-### Hello World Example
-
-This example consists of three basic pieces - a component, a decorator, and a
-service. They are all constructed via injection. For more information see the
-comments in the source `modules/examples/src/hello_world/index.js`.
-
-You can build this example as either a JS or a Dart app:
-
-* JS:
- * `$(npm bin)/gulp build.js.dev`, and
- * `$(npm bin)/gulp serve.js.dev`, and
- * open `localhost:8000/examples/src/hello_world/` in Chrome.
-* Dart:
- * `$(npm bin)/gulp serve/examples.dart`, and
- * open `localhost:8080/src/hello_world` in Chrome (for dart2js) or
- [Dartium][dartium] (for Dart VM).
-
 [contributing]: http://github.com/angular/angular/blob/master/CONTRIBUTING.md
 [dart]: http://www.dartlang.org
 [dartium]: http://www.dartlang.org/tools/dartium
 [download]: http://angular.io/download
+[quickstart]: https://angular.io/docs/js/latest/quickstart.html
 [ng2]: http://angular.io
 [ngDart]: http://angulardart.org
 [ngJS]: http://angularjs.org