[GRASS-git] [OSGeo/grass-website] 35ba7d: Change target of donate button to opencollective.com

[mlennert]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 35ba7dddccda8c979ee697d857dee8ad57089531
      https://github.com/OSGeo/grass-website/commit/35ba7dddccda8c979ee697d857dee8ad57089531
  Author: mlennert <mlennert at club.worldonline.be>
  Date:   2021-09-07 (Tue, 07 Sep 2021)

  Changed paths:
    M content/contribute/sponsoring.md

  Log Message:
  -----------
  Change target of donate button to opencollective.com