Clarify that Icecast is able to stream video as well

This changes the description to make it clear that Icecast is able to stream
video as well, not only audio.

index.html

@@ -3,8 +3,8 @@ layout: default
 ---
 <div class="article" id="about">
 	<h3>About Icecast 2</h3>
-	<p>Icecast is a streaming media server which currently supports
-	Ogg (Vorbis and Theora), Opus, WebM and MP3 audio streams.<br/>
+	<p>Icecast is a streaming media (audio/video) server which currently supports
+	Ogg (Vorbis and Theora), Opus, WebM and MP3 streams.<br/>
 	It can be used to create an Internet radio station or a privately
 	running jukebox and many things in between.
 	It is very versatile in that new formats can be added