fix readme for sample location in Dart

Closes angular#745

Author: kevmoo

README.md

@@ -71,8 +71,8 @@ They are all constructed via injection. For more information see the comments in
 source `modules/examples/src/hello_world/index.js`.
 
 You can build this example as either JS or Dart app:
-* (JS) `gulp serve.js.dev` and open `localhost:8000/examples/web/hello_world/` in Chrome.
-* (Dart) `gulp serve/examples.dart` and open `localhost:8080/hello_world` in Chrome (for dart2js) or Dartium (for Dart VM).
+* (JS) `gulp serve.js.dev` and open `localhost:8000/examples/src/hello_world/` in Chrome.
+* (Dart) `gulp serve/examples.dart` and open `localhost:8080/src/hello_world` in Chrome (for dart2js) or Dartium (for Dart VM).
 
 ## Debug the transpiler