[pitivi] help: turn the Media library section into Left pane section in mainwindow.page

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

commit 22eacac8ab4c7865d7dee42f99cc4f4d63c680d9
Author: Tomas Karger <tomkarger gmail com>
Date:   Wed Feb 5 16:38:49 2014 +0100

    help: turn the Media library section into Left pane section in mainwindow.page

 help/C/mainwindow.page |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/help/C/mainwindow.page b/help/C/mainwindow.page
index 2ecc883..9968322 100644
--- a/help/C/mainwindow.page
+++ b/help/C/mainwindow.page
@@ -107,8 +107,11 @@
     </section>
 
     <section>
-     <title>Media Library</title>
-      <p>The media library displays the imported media files in your project and allows you to manage 
them.</p>
+     <title>Left pane</title>
+      <p>The left pane contains media and effect libraries. You can switch between them by selecting the 
appropriate tab. The <gui>Media library</gui> displays the imported media files in your project and allows 
you to manage them. The <gui>Effect library</gui> contains number of audio and video effects applicable to 
clips.</p>
+      <note style="tip">
+      <p>You can search the libraries by using the text box in the header of each library.</p>
+      </note>
     </section>
 
 </page>