[gnome-chess] Add GTK category to desktop file

[Michael Catanzaro <mcatanzaro src gnome org>]

commit e78f1433aaac64fee0fd45ee88e5d5c1d76143da
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu Oct 31 21:05:53 2013 -0500

    Add GTK category to desktop file
    
    Thanks, desktop-file-validate...

 data/glchess.desktop.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/glchess.desktop.in b/data/glchess.desktop.in
index 6fb8039..db2741f 100644
--- a/data/glchess.desktop.in
+++ b/data/glchess.desktop.in
@@ -7,7 +7,7 @@ Version=1.0
 Exec=gnome-chess
 Terminal=false
 Type=Application
-Categories=GNOME;Game;BoardGame;
+Categories=GNOME;GTK;Game;BoardGame;
 StartupNotify=true
 Icon=gnome-chess
 MimeType=application/x-chess-pgn;