monoblue: fix page subtitle on help pages

mercurial/templates/monoblue/help.tmpl

@@ -30,7 +30,7
         </ul>
     </div>
 
-    <h2 class="no-link no-border">branches</h2>
+    <h2 class="no-link no-border">help</h2>
     <div id="doc">
     {rstdoc(doc, "html")}
     </div>

mercurial/templates/monoblue/helptopics.tmpl

@@ -30,7 +30,7
         </ul>
     </div>
 
-    <h2 class="no-link no-border">branches</h2>
+    <h2 class="no-link no-border">help</h2>
     <table cellspacing="0">
     <tr><td colspan="2"><h2><a name="main" href="#topics">Topics</a></h2></td></tr>
     {topics % helpentry}