Added information about Cactus plugin

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114279 13f79535-47bb-0310-9956-ffa450edef68

xdocs/index.html

@@ -18,6 +18,8 @@
         <li>Some plugins are hosted at <a href="http://maven-plugins.sourceforge.net">SourceForge</a></li>
         <li><a href="http://xdoclet.sourceforge.net">XDoclet</a> hosts it's 
             <a href="http://xdoclet.sourceforge.net/maven-plugin.html">own plugin</a></li>
+        <li><a href="http://jakarta.apache.org/cactus">Cactus</a> hosts it's 
+            <a href="http://jakarta.apache.org/cactus/integration/maven/">own plugin</a></li>
         <li>Please tell us of any others</li>
       </ol>
     </p>