Tidy up the HTML

[SVN r15838]

index.html

@@ -6,7 +6,7 @@
 
   <body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080">
 
-  <h1><IMG SRC="../../c++boost.gif" WIDTH="276" HEIGHT="86">Header &lt;<a HREF="../../boost/function.hpp">boost/function.hpp</a>&gt;</h1>
+  <h1><IMG SRC="../../c++boost.gif" WIDTH="276" HEIGHT="86" alt="C++ Boost">Header &lt;<a HREF="../../boost/function.hpp">boost/function.hpp</a>&gt;</h1>
 
 <p> The header &lt;<a HREF="../../boost/function.hpp">boost/function.hpp</a>&gt; includes a family of class templates that are function object wrappers. The notion is similar to a generalized callback. It shares features with function pointers in that both define a call interface (e.g., a function taking two integer arguments and returning a floating-point value) through which some implementation can be called, and the implementation that is invoked may change throughout the course of the program.
 
@@ -24,7 +24,7 @@
   <li><a href="doc/faq.html">Frequently Asked Questions</a></li>
 </ul>
 
-<a name="compatibility"><h2>Compatibility Note</h2></a>
+<h2><a name="compatibility">Compatibility Note</a></h2>
 <p> Boost.Function has been partially redesigned to minimize the interface and make it cleaner. Several seldom- or never-used features of the older Boost.Function have been deprecated and will be removed in the near future. Here is a list of features that have been deprecated, the likely impact of the deprecations, and how to adjust your code:
 <ul>
   <li>The <code>boost::function</code> class template syntax has