[GRASS-git] [OSGeo/grass-website] 577b3c: Update README.md

[Nicolas Bozon]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 577b3c67414f66bcaa4fd32dba2e8c302db79dd1
      https://github.com/OSGeo/grass-website/commit/577b3c67414f66bcaa4fd32dba2e8c302db79dd1
  Author: Nicolas Bozon <nicolas.bozon at gmail.com>
  Date:   2019-12-06 (Fri, 06 Dec 2019)

  Changed paths:
    M README.md

  Log Message:
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  Update README.md