upgrade45.html

Hi,

A small typo.

Cheers,
Benoit Lecocq
--- upgrade45.html.orig	Sun Apr 12 09:55:20 2009
+++ upgrade45.html	Sun Apr 12 09:57:04 2009
@@ -69,7 +69,7 @@
   <li><a href="#ifconfig">ifconfig(8) options changes</a>
   <li><a href="#Xchanges">X changes</a>
   <li><a href="#mixerctl">mixerctl(1) name changes</a>
-  <li><a href="#pfsync">pfsync versuon number change</a>
+  <li><a href="#pfsync">pfsync version number change</a>
   <li><a href="#newsysmerge">New sysmerge tool</a>
   <li><a href="#rc.conf">rc.conf</a>
   <li><a href="#kern">Modified kernel</a>