[GRASS-git] [OSGeo/grass-website] 4f96e9: fix WIKI url

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 4f96e96ede5c419d9848c67f0b0b09e7a3589e08
      https://github.com/OSGeo/grass-website/commit/4f96e96ede5c419d9848c67f0b0b09e7a3589e08
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2020-07-28 (Tue, 28 Jul 2020)

  Changed paths:
    M content/about/community.md

  Log Message:
  -----------
  fix WIKI url

Found with

https://validator.w3.org/checklink?uri=https%3A%2F%2Fgrass.osgeo.org%2F&hide_redirects=on&hide_type=all&recursive=on&depth=2&check=Check