[empathy] fixed typo in help

[Shaun McCance <shaunm src gnome org>]

commit 307edc47ea9dc3abe2d4e6ab7e3778850a696faa
Author: Å?ukasz JernaÅ? <deejay1 srem org>
Date:   Thu Feb 11 14:37:53 2010 +0100

    fixed typo in help

 help/C/video-call.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/video-call.page b/help/C/video-call.page
index 4225384..559b288 100644
--- a/help/C/video-call.page
+++ b/help/C/video-call.page
@@ -52,7 +52,7 @@
     </item>
   </steps>
   <note style="tip">
-    <p>To turn a video conversation into an adio conversation, choose
+    <p>To turn a video conversation into an audio conversation, choose
     <guiseq><gui>Call</gui><gui>Send video</gui></guiseq>, or click the
     <media type="image" mime="image/png" src="figures/camera-web.png">video call</media>
     toolbar button to deselect it.</p>