Make the formatting of the generated docs more consistent with the rest of the
docs in the “Services” section of the manual.
* gnu/services/configuration (generate-documentation): Represent the data type
documentation of a field using a DEFTP table rather than DEFTYPEVR elements.
Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>