[polari] appdata: Add some more content to the description

[Florian Müllner <fmuellner src gnome org>]

commit 75855c6816ebc24acf3675ee5ea60b62b88d22b2
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed May 28 00:58:07 2014 +0200

    appdata: Add some more content to the description
    
    AppData validation now complaints if the description is too short.
    Someone with more marketing foo than myself should probably improve
    this, but for now this'll do.

 data/appdata/org.gnome.Polari.appdata.xml.in |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/data/appdata/org.gnome.Polari.appdata.xml.in b/data/appdata/org.gnome.Polari.appdata.xml.in
index c2260e2..a2d46e1 100644
--- a/data/appdata/org.gnome.Polari.appdata.xml.in
+++ b/data/appdata/org.gnome.Polari.appdata.xml.in
@@ -10,6 +10,13 @@
       seamlessly with GNOME; it features a simple and beautiful interface which
       allows you to focus on your conversations.
     </_p>
+    <_p>
+      You can use Polari to publicly chat with people in a channel, and to
+      have private one-to-one conversations. Notifications make sure that
+      you never miss an important message - for private conversations,
+      they even allow you to reply instantly without switching back to the
+      application!
+    </_p>
   </description>
   <screenshots>
     <screenshot type="default" width="1200" 
height="675">https://git.gnome.org/browse/polari/plain/data/appdata/polari-main.png</screenshot>