[glom] Add a missing tag to the AppData file

[Richard Hughes <rhughes src gnome org>]

commit 72654608308b22fe5a50de1968eb8565b5085dcf
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jan 25 13:32:19 2016 +0000

    Add a missing tag to the AppData file

 glom.appdata.xml.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/glom.appdata.xml.in b/glom.appdata.xml.in
index 45be827..a0a5565 100644
--- a/glom.appdata.xml.in
+++ b/glom.appdata.xml.in
@@ -36,5 +36,6 @@
     <kudo>ModernToolkit</kudo>
     <kudo>UserDocs</kudo>
   </kudos>
+  <project_group>GNOME</project_group>
 </application>