Switch to side-by-side view

--- a/website/doc.html
+++ b/website/doc.html
@@ -33,7 +33,8 @@
       <h1>Recoll user manual</h1>
       
       <ul>
-      <li><a href="usermanual/index.html">English, HTML</a></li>
+      <li><a href="usermanual/index.html">English, HTML, many pages</a></li>
+      <li><a href="usermanual/usermanual.html">English, HTML, one page</a></li>
       <li><a href="http://stupidbeauty.com/Blog/2012/03/recoll%E7%94%A8%E6%88%B6%E6%89%8B%E5%86%8A%E7%BF%BB%E8%AD%AF%EF%BC%8Crecoll-user-manual-2/">
           中文,HTML</a></li>
       <li><a href="usermanual/recoll_user_manual.pdf">English, PDF</a></li>