[OpenSIPS-Devel] [OpenSIPS/opensips] 47e602: Fix doc formating and improve some description

[Bogdan-Andrei Iancu]

  Branch: refs/heads/1.11
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 47e602ecd470675460db642513fcd288e1b48c62
      https://github.com/OpenSIPS/opensips/commit/47e602ecd470675460db642513fcd288e1b48c62
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2017-05-11 (Thu, 11 May 2017)

  Changed paths:
    M modules/nathelper/README
    M modules/nathelper/doc/nathelper_admin.xml

  Log Message:
  -----------
  Fix doc formating and improve some description

(cherry picked from commit aa2f0f5f2bd304e3f4923aca358bdacc70065e15)