Add Jacob Champion to list of security team members

Author: mhagander

templates/security/security.html

@@ -314,6 +314,7 @@ <h2>The PostgreSQL Security Team</h2>
   <li>Dave Page</li>
   <li>Greg Stark</li>
   <li>Heikki Linnakangas</li>
+  <li>Jacob Champion</li>
   <li>Joe Conway</li>
   <li>Jonathan Katz</li>
   <li>Magnus Hagander</li>