[gnome-user-docs] Update shell-notification for 3.20

[Ekaterina Gerasimova <kat src gnome org>]

commit 7c13df8de8e49be27a3278e903f16e02d7823274
Author: Ekaterina Gerasimova <kittykat3756 gmail com>
Date:   Thu Jan 28 21:37:54 2016 +0100

    Update shell-notification for 3.20

 gnome-help/C/shell-notifications.page |   27 ++++++++++++++-------------
 1 files changed, 14 insertions(+), 13 deletions(-)
---
diff --git a/gnome-help/C/shell-notifications.page b/gnome-help/C/shell-notifications.page
index b70f3a8..1ac05e6 100644
--- a/gnome-help/C/shell-notifications.page
+++ b/gnome-help/C/shell-notifications.page
@@ -39,20 +39,17 @@
   <p>If an application or a system component wants to get your attention, a
   notification will be shown at the top of the screen.</p>
 
-  <p>For example, if you get a new chat message, new updates are available for
-  your computer, or your computer’s battery is low, you will get a notification
-  informing you.</p>
+  <p>For example, if you get a new chat message or a new email, you will get a
+  notification informing you.</p>
 
 <!--  <p>To minimize distraction, some notifications first appear as a single line.
   You can move your mouse over them to see their full content.</p>-->
 
-  <media type="image" width="700" src="figures/shell-notification.png"/>
-
   <p>Other notifications have selectable option buttons. To close one of these
   notifications without selecting one of its options, click the close
   button.</p>
 
-  <media type="image" width="500" src="figures/notification-buttons.png"/>
+<!--  <media type="image" width="500" src="figures/notification-buttons.png"/>-->
 
   <p>Clicking the close button on some notifications dismisses them. Others,
   like Rhythmbox or your chat application, will stay hidden in the message 
@@ -105,16 +102,20 @@
       <p>Click on <gui>Notifications</gui> to open the panel.</p>
     </item>
     <item>
-      <p>Switch <gui>Show Pop Up Banners</gui> to <gui>OFF</gui>.</p>
+      <p>Switch <gui>Notification Banners</gui> to <gui>OFF</gui>.</p>
     </item>
   </steps>
 
-  <p if:test="!platform:gnome-classic">When switched off, most notifications will
-  not pop up at the top of the screen. Very important notifications, such as when
-  your battery is critically low, will still pop up. Notifications will still be
-  available in the message tray when you display it (by clicking on the clock,
-  or by pressing <keyseq><key>Super</key><key>M</key></keyseq>), and they will
-  start popping up again when you switch the toggle to <gui>ON</gui> again.</p>
+  <p if:test="!platform:gnome-classic">When switched off, most notifications
+  will not pop up at the top of the screen. <!--Very important notifications, such
+  as when your battery is critically low, will still pop up.--> Notifications will
+  still be available in the message tray when you display it (by clicking on
+  the clock, or by pressing <keyseq><key>Super</key><key>M</key></keyseq>), and
+  they will start popping up again when you switch the toggle to <gui>ON</gui>
+  again.</p>
+
+  <p>You can also disable or re-enable notifications for individual
+  applications from the <gui>Notifications</gui> panel.</p>
 
   <p if:test="platform:gnome-classic">When switched off, most notifications will
   not pop up at the bottom of the screen. Very important notifications, such as