- added the link to the reference.

html/tutorial/index.html

@@ -81,8 +81,8 @@ some <a href="http://gforge.inria.fr/docman/index.php?group_id=117&selected_doc_
 available. However, it is easily out of date.
 </p>
 <p>
-A video presents the <a href=""></a>use of the Alignment API from the
-NeOn toolkit.
+A (mute) soundcast presents the <a href="ftp://ftp.inrialpes.fr/pub/exmo/media/neonalign-demo-owl-nosound.mpeg">use of the Alignment API from the
+NeOn toolkit</a>.
 </p>
 <p>
 Other sources of information are the example directory of the