[gnome-sudoku/mcatanzaro/appstream] Use ~ for devel versions in appdata

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 0830af05d65ca9de5bceed73d3bfe81c54290f88
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Mar 22 17:20:45 2021 -0500

    Use ~ for devel versions in appdata

 data/org.gnome.Sudoku.appdata.xml.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/org.gnome.Sudoku.appdata.xml.in b/data/org.gnome.Sudoku.appdata.xml.in
index d81c933..8bf5459 100644
--- a/data/org.gnome.Sudoku.appdata.xml.in
+++ b/data/org.gnome.Sudoku.appdata.xml.in
@@ -48,6 +48,7 @@
   </kudos>
   <releases>
     <release version="40.0" date="2021-03-22" />
+    <release version="40~alpha" date="2021-01-07" />
     <release version="3.38.0" date="2020-09-11" />
     <release version="3.37.92" date="2020-09-04" />
     <release version="3.37.90" date="2020-08-06" />