Change ogg link, a=chris

diff --git a/en-US/pages/install.thtml b/en-US/pages/install.thtml
index b3a1fa2..e02c21f 100755
--- a/en-US/pages/install.thtml
+++ b/en-US/pages/install.thtml
@@ -13,7 +13,7 @@
 <h2 id="demo">Demo Install Video</h2>
 <video style="width:90%;" controls="controls" >
     <source src="http://173.13.143.77/video/YioopDemo.mp4" type="video/mp4">
-    <source src="YioopDemo.ogg" type="video/ogg">
+    <source src="http://173.13.143.77/video/YioopDemo.ogg" type="video/ogg">
   Your browser does not support the video tag.
 </video>
 <h2 id="xampp">XAMPP on Windows</h2>