[gnome-sudoku] Add appdata screenshot to git

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 7b2f02fa68e0a8b3f8971e91336f864956549804
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Fri Mar 11 14:23:26 2022 -0600

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

 data/org.gnome.Sudoku.appdata.xml.in |   2 +-
 data/screenshot.png                  | Bin 0 -> 22755 bytes
 2 files changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Sudoku.appdata.xml.in b/data/org.gnome.Sudoku.appdata.xml.in
index 369b7ec..bf0f4a2 100644
--- a/data/org.gnome.Sudoku.appdata.xml.in
+++ b/data/org.gnome.Sudoku.appdata.xml.in
@@ -26,7 +26,7 @@
   </description>
   <screenshots>
     <screenshot height="577" width="748" type="default">
-      <image>https://people.gnome.org/~mcatanzaro/gnome-sudoku.png</image>
+      <image>https://gitlab.gnome.org/GNOME/gnome-sudoku/-/raw/master/data/screenshot.png</image>
       <caption>A GNOME sudoku game preview</caption>
     </screenshot>
   </screenshots>
diff --git a/data/screenshot.png b/data/screenshot.png
new file mode 100644
index 0000000..67a2925
Binary files /dev/null and b/data/screenshot.png differ