[gnome-tour] metainfo: add a compulsory_for_desktop tag

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 2e241880efc0e1c780df1833760b39dfbbcbee46
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Fri Sep 4 15:51:11 2020 +0200

    metainfo: add a compulsory_for_desktop tag
    
    marks the app as essential for GNOME
    fixes #20

 data/org.gnome.Tour.metainfo.xml.in.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/org.gnome.Tour.metainfo.xml.in.in b/data/org.gnome.Tour.metainfo.xml.in.in
index a75c02f..2de1d55 100644
--- a/data/org.gnome.Tour.metainfo.xml.in.in
+++ b/data/org.gnome.Tour.metainfo.xml.in.in
@@ -32,6 +32,7 @@
       <kudo>HiDpiIcon</kudo>
   </kudos>
   <project_group>GNOME</project_group>
+  <compulsory_for_desktop>GNOME</compulsory_for_desktop>
   <developer_name>The GNOME Project</developer_name>
   <update_contact>bilal elmoussaoui gnome org</update_contact>
   <translation type="gettext">@gettext-package@</translation>