Switch to side-by-side view

--- a/website/custom.html
+++ b/website/custom.html
@@ -88,7 +88,7 @@
         "almost full" support for HTML capabilities, with a few
         restrictions due to the Qt QTextBrowser object. The details
         are described in the
-        <a href="http://www.recoll.org/usermanual/rcl.search.html#RCL.SEARCH.GUI.CUSTOM.RESLIST">
+        <a href="http://www.recoll.org/usermanual/RCL.SEARCH.html#RCL.SEARCH.GUI.CUSTOM.RESLIST">
 	  Recoll manual</a>.</p>
 
       <p>As of Recoll 1.17, the result list is a WebKit object by