Add link to release notes to project website
<li><a href="./javadocs/api-release/index.html">JavaDoc API (Latest release)</a></li>
<li><a href="./apidocs/index.html">JavaDoc API (Latest development)</a></li>
<li><a href="./project-reports.html">Project Reports</a></li>
+ <li><a href="https://dist.apache.org/repos/dist/release/commons/fileupload/RELEASE-NOTES.txt">Release Notes</a></li>
</ul>
<p>You can also <a href="./source-repository.html">browse</a> the Subversion repository.</p>
</section>
