Mis-documentation in README: check_relay vs. rcpt_ok

[Tomas Lee]

The README file says:

    At least one plugin MUST allow or deny the RCPT command to enable
    receiving mail.  The "check_relay" plugin is the standard plugin for
    this.

But in version 0.29, the "check_relay" plugin split into two plugins:
"check_relay" and "rcpt_ok".  "rcpt_ok" is the one that actually hooks
into RCPT now, so shouldn't the README file say "rcpt_ok" instead of
"check_relay"?