[yelp] Add help to list of desktop file keywords

[David King <davidk src gnome org>]

commit 12558e19fdc63439fa98a564de9ec90e67241ad0
Author: David King <amigadave amigadave com>
Date:   Fri Aug 19 17:58:46 2016 +0100

    Add help to list of desktop file keywords
    
    https://bugzilla.gnome.org/show_bug.cgi?id=764322

 yelp.desktop.in.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/yelp.desktop.in.in b/yelp.desktop.in.in
index 60b0aa9..cd582db 100644
--- a/yelp.desktop.in.in
+++ b/yelp.desktop.in.in
@@ -1,7 +1,7 @@
 [Desktop Entry]
 _Name=Help
 _Comment=Get help with GNOME
-_Keywords=documentation;information;manual;
+_Keywords=documentation;information;manual;help;
 OnlyShowIn=GNOME;Unity;
 Exec=yelp %u
 Icon=help-browser