[InterNetNews/inn] d1fb0c: Better document NNTPSERVER

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: d1fb0c22545eeb16bbf0df1db42a4b9704c446b1
      https://github.com/InterNetNews/inn/commit/d1fb0c22545eeb16bbf0df1db42a4b9704c446b1
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2024-02-11 (Sun, 11 Feb 2024)

  Changed paths:
    M doc/pod/inews.pod
    M doc/pod/inn.conf.pod
    M frontends/inews.c

  Log Message:
  -----------
  Better document NNTPSERVER

Also fix the name of tinews.pl.