[Gardeners] about the lisp directory

[Adam Jones]

I think a lot can be accomplished towards making this more readily
understandable by putting the information about the current category
in a sidebar (I would prefer it to the right) and having the "meat" of
the page next to it. A little bit of background and/or border changes
would give a visual hint that the stuff off to the side serves a
different purpose from the given links.

I will be working on a copy of the text from the page to try and
express my suggestions in a more visual form.

Adam