[gnome-nibbles/mcatanzaro/appdata-screenshot] Add appdata screenshot to git

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 07abb108be0e70f9cd369fcbaf3ae502587eaf08
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Fri Mar 11 14:04:46 2022 -0600

    Add appdata screenshot to git
    
    people.gnome.org is shutting down, so it is time to move our appdata
    screenshot to git.
    
    Note this screenshot is old and could stand to be refreshed.

 data/org.gnome.Nibbles.appdata.xml.in |   2 +-
 data/screenshot.png                   | Bin 0 -> 50579 bytes
 2 files changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Nibbles.appdata.xml.in b/data/org.gnome.Nibbles.appdata.xml.in
index 912566b..ef7861c 100644
--- a/data/org.gnome.Nibbles.appdata.xml.in
+++ b/data/org.gnome.Nibbles.appdata.xml.in
@@ -26,7 +26,7 @@
   </description>
   <screenshots>
     <screenshot height="608" width="972" type="default">
-      <image>https://people.gnome.org/~mcatanzaro/gnome-nibbles.png</image>
+      <image>https://gitlab.gnome.org/GNOME/gnome-nibbles/-/raw/master/data/screenshot.png</image>
     </screenshot>
   </screenshots>
   <releases>
diff --git a/data/screenshot.png b/data/screenshot.png
new file mode 100644
index 0000000..b2fd10d
Binary files /dev/null and b/data/screenshot.png differ