update component page link

Author: dfreedm

README.md

@@ -1,6 +1,6 @@
 core-component-page-dev
 =======================
 
-See the [component page](http://polymer.github.io/core-component-page-dev) for more information.
+See the [component page](http://polymer-project.org/docs/elements/core-elements.html#core-component-page-dev) for more information.
 
 *Note*: when you make changes to this files in this repo, you need to re-vulcanize https://github.com/Polymer/core-component-page.