Remove description of currently unsupported configuration keywords

        #   substitution variables $0..$n.  $0 refers to all of the

        #   matched data.  In the case of a regex match, $1..$n refer

        #   to the corresponding capture group in the match regex.

        #

        #   handler = <cmd_string>

        #   Invoke 'sh -c <cmd_string>', passing the matched data to

        #   the handler's stdin and receiving the replacement data

        #   from the handler's stdout.

        # }

        # 

        send-after {

            context = 2

            data = "ping"

        }

        # fault = drop | reorder | corrupt-header | corrupt-data | corrupt-mac        

        # Apply the given fault to all of the containers produced and

        # forwarded by this action.

    }

}