[GRASS-web] [OSGeo/grass-website] 656b6d: add a subsection with anniversary presentations (#...

[Veronica Andreo]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 656b6d10eaf2faa5167fd661a36d2135a9a1336a
      https://github.com/OSGeo/grass-website/commit/656b6d10eaf2faa5167fd661a36d2135a9a1336a
  Author: Veronica Andreo <veroandreo at gmail.com>
  Date:   2020-04-13 (Mon, 13 Apr 2020)

  Changed paths:
    M content/about/history.md

  Log Message:
  -----------
  add a subsection with anniversary presentations (#103)