Update 40x.html

Author: atkeranov

40x.html

@@ -70,7 +70,7 @@ <h2>
       <li>
         <a href="#" onclick="history.go(-1); return false;">Go back</a> and try another way</li>
       <li>Head to the
-        <a href="/devtools/xamarin/">Documentation Homepage</a>
+        <a href="/report-server/">Documentation Homepage</a>
       </li>
       <li>Cheer up and
         <a href="http://www.telerik.com/download">try our products</a>. Some of them are free!</li>