Update README.md

Author: Jerome Louvel

README.md

@@ -1,7 +1,10 @@
 The "Web API" architecture style
 ================================
 
-**Here is [the deliverable HTML document](http://restlet.github.io/web-api-style/).**
+
+**[Published W3C-style HTML document](http://restlet.github.io/web-api-style/).**
+
+**[Source HTML code in GH-Pages branch](https://github.com/restlet/web-api-style/tree/gh-pages).**
 
 Formalization based on [this blog post and comments](http://blog.restlet.com/2013/05/02/how-much-rest-should-your-web-api-get/), especially based on the [following discussion on the REST-Discuss list](http://tech.groups.yahoo.com/group/rest-discuss/message/19371).