Cleanup of stray spaces and tabs
diff --git a/user_guide/overview/index.html b/user_guide/overview/index.html
index 3cb56f4..59ee05c 100644
--- a/user_guide/overview/index.html
+++ b/user_guide/overview/index.html
@@ -67,7 +67,7 @@
 		<li><a href="goals.html">Design and Architectural Goals</a></li>
 		<li><a href="package.html">Package Description</a></li>
 	</ul>
-	
+