Polymer now only needs the lite version of polyfill

Author: zenorocha

README.md

@@ -23,7 +23,7 @@ Or [download as ZIP](https://github.com/webcomponents/hello-world-polymer/archiv
 1. Import polyfill:
 
     ```html
-    <script src="bower_components/webcomponentsjs/webcomponents.min.js"></script>
+    <script src="bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
     ```
 
 2. Import custom element:

index.html

@@ -5,8 +5,8 @@
     <meta charset="utf-8">
     <title>&lt;hello-world&gt;</title>
 
-    <script src="bower_components/webcomponentsjs/webcomponents.min.js"></script>
     <!-- Imports polyfill -->
+    <script src="../webcomponentsjs/webcomponents-lite.min.js"></script>
 
     <!-- Imports custom element -->