[pitivi] help: update pages regarding the redo function

[Jean-François Fortin Tam <jfft src gnome org>]

commit f1ea5a70a74eba4015e9df7f8155f1b5354bfd71
Author: Tomas Karger <tomkarger gmail com>
Date:   Sun May 25 14:31:57 2014 +0200

    help: update pages regarding the redo function

 help/C/cheatsheet.page       |    2 +-
 help/C/workwithprojects.page |    3 +++
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/help/C/cheatsheet.page b/help/C/cheatsheet.page
index 0a98e47..9ab8119 100644
--- a/help/C/cheatsheet.page
+++ b/help/C/cheatsheet.page
@@ -28,7 +28,7 @@
           <item><p><keyseq><key>Ctrl</key><key>S</key></keyseq>: Save the current project</p></item>
           <item><p><keyseq><key>Ctrl</key><key>Q</key></keyseq>: Quit the application</p></item>
           <item><p><keyseq><key>Ctrl</key><key>Z</key></keyseq>: Undo</p></item>
-          <item><p><keyseq><key>Ctrl</key><key>Y</key></keyseq>: Redo</p></item>
+          <item><p><keyseq><key>Ctrl</key><key>Shift</key><key>Z</key></keyseq>: Redo</p></item>
           <item><p><key>F11</key>: Toggle fullscreen mode</p></item>
           <item><p><key>F1</key>: Show the user manual</p></item>
         </list>
diff --git a/help/C/workwithprojects.page b/help/C/workwithprojects.page
index 0b92cb3..7b420ae 100644
--- a/help/C/workwithprojects.page
+++ b/help/C/workwithprojects.page
@@ -36,6 +36,9 @@
     <section>
         <title>Undoing and reverting changes</title>
         <p>To undo a change, simply click on the <gui>Undo</gui> button in the header bar or press 
<keyseq><key>Ctrl</key><key>Z</key></keyseq>. In addition to undoing individual changes, you can also decide 
to revert all the changes you have made since the last time you saved your project. To do so, use 
<guiseq><gui>App menu</gui><gui>Revert to saved version</gui></guiseq>.</p>
+        <note style="tip">
+            <p>To redo changes that were undone, click on the <gui>Redo</gui> button in the header bar or 
press <keyseq><key>Ctrl</key><key>Shift</key><key>Z</key></keyseq>.</p>
+        </note>
     </section>
 
     <section>