[gnome-system-monitor] Added F1 help shortcut for consistency with other gnome apps

[Robert Roth <robertroth src gnome org>]

commit e7acd6efeac7f742011ad5d801af90e1f6a06945
Author: Robert Roth <robert roth off gmail com>
Date:   Wed Jul 24 00:41:31 2013 +0300

    Added F1 help shortcut for consistency with other gnome apps

 data/menus.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/menus.ui b/data/menus.ui
index 17e7386..f95c079 100644
--- a/data/menus.ui
+++ b/data/menus.ui
@@ -17,6 +17,7 @@
       <item>
         <attribute name="label" translatable="yes">Help</attribute>
         <attribute name="action">app.help</attribute>
+        <attribute name="accel">F1</attribute>
       </item>
       <item>
         <attribute name="label" translatable="yes">About</attribute>