Fix Xaos port

ports/xaos/xaos.html

Index: ports/xaos/xaos.html
diff --git a/ports/xaos/xaos.html b/ports/xaos/xaos.html
index 3a3ca3e52bac109f63aa0af1ccdb7bd3f61d6f45..48d46f2f708d946b71d491a92903a26f38aa7ff1 100644
--- a/ports/xaos/xaos.html
+++ b/ports/xaos/xaos.html
@@ -23,17 +23,15 @@
     This is fairly rough port of Xaos - only mouse events are supported.
     <br />
     Left button zooms in, right button zooms out.
-    There is also a mostly working menu which appear when the mouse
-    cursor touches the top end of the screen.
     </p>
     <p>
     XaoS is a GPL'ed open source project: 
-    <a href="http://wmi.math.u-szeged.hu/xaos/doku.php?id=documentation:manual:gpl"> license</a>,
-    <a href="http://wmi.math.u-szeged.hu/xaos/doku.php?id=downloads:main">
+    <a href="http://matek.hu/xaos/doku.php?id=documentation:manual:gpl"> license</a>,
+    <a href="http://matek.hu/xaos/doku.php?id=downloads:main">
       source</a>.
     </p>
     The patches used to create this demo can be found 
-    <a href="http://code.google.com/p/naclports/source/browse/trunk/src/ports/xaos/">
+    <a href="https://chromium.googlesource.com/external/naclports/+/master/ports/xaos">
       here</a>.
   </body>
 </HTML>