Merge branch 'wip/3-32-appdata' into 'master'

Update screenshots with those for 3.32 from the wiki

See merge request !175

(cherry picked from commit 12110e80)

d9e3aca9 Update screenshots with those those for 3.32 from the wiki
3959fd42 Update README with icon and new screenshot
3 jobs for gnome-3-32 in 6 minutes and 48 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
failed #247550
fedora

00:01:25

passed #247551
ubuntu

00:06:48

 
  Test
skipped #247552
flatpak
 
Name Stage Failure
failed
fedora Build
  installing package libxcrypt-4.4.4-1.fc29.x86_64 needs 2MB on the / filesystem
installing package libcap-ng-0.7.9-5.fc29.x86_64 needs 2MB on the / filesystem

Error Summary
-------------
Disk Requirements:
At least 4MB more space needed on the / filesystem.

ERROR: Job failed: exit code 1