Update link to source code (#15)

Signed-off-by: Simon Heimler <simon.heimler@sap.com>

Author: Fannon

static/index.html

@@ -51,8 +51,7 @@ <h1 class="title">
       <p class="subtitle">
         Example application for <a href="https://open-resource-discovery.github.io/specification/">Open Resource
           Discovery</a> (ORD).
-        Source Code: <a
-          href="https://github.com/open-resource-discovery/reference-application/">github.com/open-resource-discovery/reference-application/</a>.
+        <a href="https://github.com/open-resource-discovery/reference-application">Source Code</a>.
       </p>
     </div>
     <br />