Specify whether the schema XML source should be included at the end of the
<b>Schema Overview</b> page/block.
<p>
When this parameter is selected (<b><code>true</code></b>),
the XML source will be published as the last section of Schema Overview.
<p>
When the parameter is unselected (<b><code>false</code></b>), then
<ul>
<li>
  In case of framed HTML, the XML source will be published as a separate page 
  (<code>schema-source.html</code> file).
</li>
<li style="margin-top:10pt">
  In case of single-file RTF/HTML, the XML source is placed at the end of the whole
  details section documenting this XML schema, which includes:
  <ul>
    <li>Schema overview</li>
    <li>Component details</li>
    <li>Schema XML source</li>
  </ul>
</li>
</ul>