[GRASS-git] [OSGeo/grass] 42303d: fix distro name

[Markus Neteler]

  Branch: refs/heads/dockerfile_readmes
  Home:   https://github.com/OSGeo/grass
  Commit: 42303db6a602f5fb150f789389b1f95d0b69facf
      https://github.com/OSGeo/grass/commit/42303db6a602f5fb150f789389b1f95d0b69facf
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2019-10-02 (Wed, 02 Oct 2019)

  Changed paths:
    M docker/README_ubuntu.md

  Log Message:
  -----------
  fix distro name