refactor: Get the taxonomy support back to a functional state. There's now a taxonomy content source that wraps another normal content source like a blog posts' source. It works in tandem with a taxonomy content pipeline that will do the heavy lifting of figuring out what kind of terms exist and need to be baked.

<ul class="nav navbar-nav navbar-right">
    <li><a href="{{ pcurl('getting-started') }}">Getting Started</a></li>
    <li><a href="{{ pcurl('docs') }}">Documentation</a></li>
    <li><a href="{{ pcurl('api') }}">Code</a></li>
    <li><a href="{{ pcurl('support') }}">Support</a></li>
</ul>