Fix some more typos and grammatical errors.

[SVN r71089]

doc/html/index.html

@@ -27,7 +27,7 @@
 </h3></div></div>
 <div><p class="copyright">Copyright &#169; 2003-2007 Fernando Luis Cacciola Carballal</p></div>
 <div><div class="legalnotice">
-<a name="id2854050"></a><p>
+<a name="id2846608"></a><p>
         Distributed under the Boost Software License, Version 1.0. (See accompanying
         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
       </p>
@@ -163,7 +163,7 @@
 </div>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><p><small>Last revised: April 06, 2011 at 21:53:26 GMT</small></p></td>
+<td align="left"><p><small>Last revised: April 07, 2011 at 19:52:21 GMT</small></p></td>
 <td align="right"><div class="copyright-footer"></div></td>
 </tr></table>
 <hr>