SEC-611: Missed a letter in the link.

src/docbkx/springsecurity.xml

@@ -285,7 +285,7 @@
         </itemizedlist>
 
         <para>(* Denotes provided by a third party; check our <ulink
-        url="http://acegisecurity.org/powering.html">integration pag</ulink>e
+        url="http://acegisecurity.org/powering.html">integration page</ulink>
         for links to the latest details)</para>
 
         <para>Many independent software vendors (ISVs) adopt Spring Security