[geary] Update keyboard shortcuts in help

[Charles Lindsay <clindsay src gnome org>]

commit d5117b94b570c97ba48dcecda4e5b4de901572cf
Author: Charles Lindsay <chaz yorba org>
Date:   Wed Jan 8 11:19:19 2014 -0800

    Update keyboard shortcuts in help
    
    Closes: bgo #721792

 help/C/shortcuts.page |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/help/C/shortcuts.page b/help/C/shortcuts.page
index 29b6850..b672224 100644
--- a/help/C/shortcuts.page
+++ b/help/C/shortcuts.page
@@ -28,7 +28,15 @@
        </tr>
        <tr>
                <td><p>Archive</p></td>
-               <td><p> <key>A</key> or <key>Delete</key> or <key>Backspace</key></p></td>
+               <td><p> <key>A</key></p></td>
+       </tr>
+       <tr>
+               <td><p>Trash</p></td>
+               <td><p> <key>Delete</key> or <key>Backspace</key></p></td>
+       </tr>
+       <tr>
+               <td><p>Delete</p></td>
+               <td><p> <keyseq><key>Shift</key><key>Delete</key></keyseq> or 
<keyseq><key>Shift</key><key>Backspace</key></keyseq></p></td>
        </tr>
        <tr>
            <td><p>Star</p></td>