de document title)

* Influencing markup:

  - :dudir:`default-role` (set a new default role)
  - :dudir:`role` (create a new role)

  Since these are only per-file, better use Sphinx' facilities for setting the
  :confval:`default_role`.

Do *not* use the directives :dudir:`sectnum`, :dudir:`header` and
:dudir:`footer`.

Directives added by Sphinx are described in :ref:`sphinxmarkup`.

Basically, a directive consists of a name, arguments, options and content. (Keep
this terminology in mind, it is used in t