ipfw.8: there never was a "skip-action" action

It was renamed during review of D1776 but this entry slipped through.

PR:		243284
Reported by:	pprocacci@gmail.com
Obtained from:	Chad Jacob Milios <milios@ccsys.com>

sbin/ipfw/ipfw.8

 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 13, 2023
+.Dd January 25, 2023
 .Dt IPFW 8
 .Os
 .Sh NAME
@@ -4631,7 +4631,7 @@ Bear in mind that this is example only and it is not very useful by itself.
 .Pp
 On way out, after all checks place this rules:
 .Pp
-.Dl "ipfw add allow record-state skip-action"
+.Dl "ipfw add allow record-state defer-action"
 .Dl "ipfw add nat 1"
 .Pp
 And on way in there should be something like this: