help guestbook

A guestbook lets people who visit your page leave you a note. It's off
until you turn it on:

  guestbook on

Then link to it from your page:

  <a href="https://runv.club/guestbook/NAME">sign my guestbook</a>

or put it right on the page:

  <iframe src="https://runv.club/guestbook/NAME/embed" title="guestbook"
          style="width:100%;height:30rem;border:0"></iframe>

Notes show up only after you approve them. The login banner tells you
when some are waiting.

  guestbook            what's waiting, with numbers
  guestbook ok 3       show note 3
  guestbook rm 3       delete it
  guestbook ban 3      delete it, and that sender can't post to you again
  guestbook all        everything, approved or not
  guestbook off        close it

The approved notes are also at https://runv.club/guestbook/NAME.json.