Directive Test
This page exercises the directive renderer and the default markdown element mapping.
The block leaf directive is mapped to the fallback block component. It does not
have children, but its attributes should still be available on the component.
This directive is not registered in directiveComponents, so it should render
with the default directive block component.
Inline text directives are supported too:
Beta
should
flow inside the paragraph as an inline md-directive node.