[GRASS-git] [OSGeo/grass-addons] 4edd37: i.zero2null manual: example added (#208)

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-addons
  Commit: 4edd3774eccccce44b9b2c6ea851bb0beeb64616
      https://github.com/OSGeo/grass-addons/commit/4edd3774eccccce44b9b2c6ea851bb0beeb64616
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2020-06-17 (Wed, 17 Jun 2020)

  Changed paths:
    M grass7/imagery/i.zero2null/i.zero2null.html

  Log Message:
  -----------
  i.zero2null manual: example added (#208)

* i.zero2null manual: example added