[easytag] Update keyboard-shortcuts help

[Ekaterina Gerasimova <egerasimov src gnome org>]

commit 4648207792cede8773199dfb3dd1ed00025cc0b0
Author: Ekaterina Gerasimova <kittykat3756 gmail com>
Date:   Sun Oct 6 11:29:39 2013 +0100

    Update keyboard-shortcuts help

 help/C/keyboard-shortcuts.page |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/help/C/keyboard-shortcuts.page b/help/C/keyboard-shortcuts.page
index e7023a3..39c4ac2 100644
--- a/help/C/keyboard-shortcuts.page
+++ b/help/C/keyboard-shortcuts.page
@@ -19,7 +19,8 @@
 
   <title>Keyboard shortcuts</title>
 
-  <p><app>EasyTAG</app> has a number of keyboard shortcuts.</p>
+  <p><app>EasyTAG</app> has a number of keyboard shortcuts, most of which are
+  listed in the menus. Here are some which are especially useful:</p>
 
   <table rules="rows" frame="top bottom">
     <thead>