[evolution] User docs: Add shortcuts for marking messages as (un)read

[Andre Klapper <aklapper src gnome org>]

commit a4f9061a60d9e69301ae19fb67807f6232736166
Author: Ged Haywood <gnome-bugs jubileegroup co uk>
Date:   Wed Feb 26 17:30:48 2014 +0100

    User docs: Add shortcuts for marking messages as (un)read

 help/C/mail-reading-keyboard-shortcuts.page |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/help/C/mail-reading-keyboard-shortcuts.page b/help/C/mail-reading-keyboard-shortcuts.page
index 03d3de5..5096aae 100644
--- a/help/C/mail-reading-keyboard-shortcuts.page
+++ b/help/C/mail-reading-keyboard-shortcuts.page
@@ -7,7 +7,7 @@
     <link type="guide" xref="index#mail-basic" />
 <!-- TODO:POST-3-8: maybe introduce keyboard shortcuts guide xref covering any shortcuts in all modules, 
covering http://library.gnome.org/users/evolution/2.32/quickref-mail.html.en ? -->
 
-    <revision pkgversion="3.1.5" version="0.2" date="2011-07-29" status="final"/>
+    <revision pkgversion="3.10.4" version="0.3" date="2014-02-26" status="final"/>
     <credit type="author">
       <name its:translate="no">Andre Klapper</name>
       <email its:translate="no">ak-47 gmx net</email>
@@ -28,6 +28,12 @@
 <p>In the Mail window you read a message by selecting it in the message list. If you would like to see the 
message in its own window, either double-click it, press <key>Enter</key>, or press 
<keyseq><key>Ctrl</key><key>O</key></keyseq>.</p>
 </section>
 
+<section id="marking-message-read-or-unread">
+<title>Marking a message as read or unread</title>
+<p>To mark the currently selected message as read, press <keyseq><key>Ctrl</key><key>K</key></keyseq>.</p>
+<p>To mark the currently selected message as unread, press 
<keyseq><key>Ctrl</key><key>Shift</key><key>K</key></keyseq>.</p>
+</section>
+
 <section id="inside-message">
 <title>Navigating in a message</title>
 <p>To read mail with the keyboard, you can press the <key>Spacebar</key> to page down and press 
<key>Backspace</key> to page up while reading an email. Ensure that you use the keys when the message list is 
focused.</p>