Regenerate HTML pages to update content/versions

<ul>
  <li><a href=https://download.eclipse.org/webtools/downloads/index.html?reload>https://download.eclipse.org/webtools/downloads/index.html</a></li>
  <li><a href=https://archive.eclipse.org/webtools/downloads/index.html?reload>archive.eclipse.org/webtools/downloads/index.html</a></li>
</ul>