[GRASS-git] [OSGeo/grass-website] 13c0f3: minor grammar fixes

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 13c0f3051f4d1620eca0c336b27a45446f1b46de
      https://github.com/OSGeo/grass-website/commit/13c0f3051f4d1620eca0c336b27a45446f1b46de
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2020-03-28 (Sat, 28 Mar 2020)

  Changed paths:
    M content/about/credits.md

  Log Message:
  -----------
  minor grammar fixes