change the link for the ocean screencast

doc/gmsh.html

@@ -202,7 +202,7 @@ thumbnail"></a>
     <a href="/gmsh/gallery/pump.png">pump</a> (EDF R&amp;D).
 <li>Native models: 
     <a href="/gmsh/gallery/MURUROA.png">ocean</a> (here is
-    a <a href="http://braque.mema.ucl.ac.be/~jonathan/gmsh_ocean">screencast</a>
+    a <a href="http://perso.uclouvain.be/jonathan.lambrechts/gmsh_ocean">screencast</a>
     explaining how to create such a mesh),
     <a href="/gmsh/gallery/magnetron3.gif">magnetron 1</a>,
     <a href="/gmsh/gallery/magnetron4.gif">magnetron 2</a> (P. Lefvre),