[InterNetNews/inn] e08b4a: Clarify which nnrpd config files are reloaded

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: e08b4a48353af5b09b4304c6433b755c894591b6
      https://github.com/InterNetNews/inn/commit/e08b4a48353af5b09b4304c6433b755c894591b6
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2023-04-14 (Fri, 14 Apr 2023)

  Changed paths:
    M doc/pod/nnrpd.pod

  Log Message:
  -----------
  Clarify which nnrpd config files are reloaded

Fix documentation about which config files are reloaded
when nnrpd is spawned (the previous wording was wrong).

Mention inn-secrets.conf.