Fix URL

Author: LambC40P

index.html

@@ -1,5 +1,5 @@
 <h1>This Site Has Moved</h1> 
 
-<p>Magento 2 developer documentation has moved to <a href="http://magento.github.io/devdocs">http://magento.github.io/devdocs</a></p>
+<p>Magento 2 developer documentation has moved to <a href="http://devdocs.magento.com">http://devdocs.magento.com</a></p>
 
 <p>This repository will be used in the future for code samples and snippets to support Magento 2 developer documentation.</p>