Added link to parent project.

Author: anjackson

README.md

@@ -3,4 +3,6 @@ OpenWayback Web Commons
 
 [![Build Status](https://travis-ci.org/iipc/iipc-web-commons.png?branch=master)](https://travis-ci.org/iipc/iipc-web-commons/)
 
-This repository contains common utility code for the OpenWayback project.
+This repository contains common utility code for the [OpenWayback][1] project.
+
+[1]: https://github.com/iipc/openwayback