update README

README.md

@@ -1,9 +1,27 @@
-This is simply the old artdisplay plugin from Rhythmbox <2.96. 
+ArtDisplay
+===========
 
-It was removed from newer Rhythmbox versions in favor of the small cover display in the song title bar, but it still works. So if you prefer the old style, just get it.
+ArtDisplay is a plugin for [Rhythmbox](http://projects.gnome.org/rhythmbox/) that displays album art for the current track.
 
-Installation:
+This is simply a clone of the old artdisplay plugin from Rhythmbox <2.96. It was removed from newer Rhythmbox versions in favor of the small cover display in the song title bar, but it still works. 
+You can get the old style back with this plugin.
 
-	1.) Copy the folder 'ArtDisplay' to '~/.local/share/Rhythmbox/plugins'.
+
+
+Installation
+------------
+
+*Important*: The 'master' branch only works with the new Ryhtmbox 3 and is incompatible with older Rhytmbox 2.xx versions. If you are still on Rythmbox 2.xx, head over to the 'RB2' branch.
+
+	1.) Press the 'Donwload ZIP' button and extract the .zip file.
+
+	2.) Copy the folder 'ArtDisplay' to '~/.local/share/Rhythmbox/plugins'.
 	
-	2.) Activate the plugin in Rhythmbox. 
+	3.) Activate the plugin in Rhythmbox. 
+	
+
+
+Screenshot
+-----------
+
+![Screenshot](http://www.dmo60.de/ArtDisplayScreenshot.png)