added named template parameter to table of contents

[SVN r9510]

iterator_adaptors.htm

@@ -44,6 +44,8 @@
 
               <li><a href="#template_parameters">Template Parameters</a>
 
+              <li><a href="#named_template_parameters">Named Template Parameters</a>
+
               <li><a href="#policies">The Policies Class</a>
 
               <li><a href="#additional_members">Additional Class Members</a>