- added reference to web service tutorial

html/tutorial/index.html

@@ -72,6 +72,9 @@ related APIs.</dd>
 <dt><a href="tutorial3/index.html">Extending the Alignment API with a new matcher</a></dt>
 <dd>Explains how an ontology matching developer can easily integrate
   its matcher within the Alignment API.</dd>
+<dt><a href="tutorial5/index.html">Offering a matcher as a web service</a></dt>
+<dd>Explains how an ontology matching developer can expose it as a web
+  service.</dd>
 </dl>
 </p>
 <p>
@@ -162,6 +165,7 @@ Now you can go back to any of the tutorials:
     programs (and embedding the Alignment API within an application)</a></li>
 <li><a href="tutorial4/index.html">Exploiting alignments and reasoning</a></li>
 <li><a href="tutorial3/index.html">Extending the Alignment API with a new matcher</a></li>
+<li><a href="tutorial5/index.html">Offering a matcher as a web service</a></li>
 </ul>
 </p>