[gimp-web] (11 commits) ...Update Homebrew install command

[Pat David <patdavid src gnome org>]

Summary of changes:

  7f7d01c... news: draft of 2.9.8 release notes, without screenshots, vi (*)
  285a780... This is December now (*)
  3ffa43e... news: add some file format support info and fix other piece (*)
  9b186a9... themes: s/Mac OS X/macOS/ (*)
  c9a4561... news: add HGT format support information. (*)
  0671712... news: add information about color-picker and screenshots fo (*)
  00457d0... news: update the news. (*)
  0cfab0e... news: add manual localization settings. (*)
  a5a6554... news: first attempt to a "What's Next?" section. (*)
  99c0bf3... news: add link to post explaining HGT and how to map to col (*)
  8215145... Update Homebrew install command (*)

(*) This commit already existed in another branch; no separate mail sent