Switch to side-by-side view

--- a/website/release-1.16.html
+++ b/website/release-1.16.html
@@ -96,7 +96,7 @@
           the text). This is useful for example in the very common
           case where the metadata for the author list was not
           created. More details about this feature are to be found in
-          the <a href="http://www.recoll.org/usermanual/index.html">user
+          the <a href="http://www.recoll.org/doc.html">user
           manual</a>.</li> 
 
         <li>It is possible to configure the result list snippet