The HTML files rendered from MarkDown using the 'dist/release-utils.sh m' script generate anchor tags with a dash '' like this:

<h2><a id="configure-maven" class="anchor" href="#configure-maven"><span class="anchor-icon"></span></a>Configure Maven</h2>

So the README.md files use this syntax to refer to a link within the same file: <a href="#configure-maven">Configure Maven</a>

Or this to link to a section of the root README.md file:
<a href="../README.html#configure-maven">Configure Maven</a> before testing the quickstarts.</p>

On the JDF site, tne anchor tags are generated using an underscore '_', for example: <h2 id="configure_maven">Configure Maven</h2>

So none of the links work on the jdf-site since they use a dash instead of an underscore.