Bug#991688: mention improved/added man page translations

[Justin B Rye <justin.byam.rye@gmail.com>]

Joost van Baal-Ilić wrote
>  The manual pages for several projects such as systemd, util-linux,
>  OpenSSH, and Mutt in a number of languages, including French, Spanish,
>  and Macedonian, have been substantially improved. To benefit from
>  this, please install manpages-xx (where xx is the code for your
>  preferred natural language).
> 
>  During the lifetime of the bullseye release, backports of further
>  translation improvements will be provided via the backports archive.

This looks good to me - with markup it would be something like

<section id="man-xx">
  <!-- buster to bullseye -->
  <title>Improved man page translations</title>
  <para>
   The manual pages for several projects such as systemd, util-linux, OpenSSH,
   and Mutt in a number of languages, including French, Spanish, and
   Macedonian, have been substantially improved. To benefit from this, please
   install <literal>manpages-<replaceable>xx</replaceable></literal> (where
   <literal><replaceable>xx</replaceable></literal> is the code for your
   preferred natural language).
  </para>
  <para> 
   During the lifetime of the bullseye release, backports of further
   translation improvements will be provided via the
   <literal>backports</literal> archive.
  </para>
</section>

-- 
JBR	with qualifications in linguistics, experience as a Debian
	sysadmin, and probably no clue about this particular package