documentation for artifacts list

[Peter Mardahl <peterm@soda.berkeley.edu>]

  Could whomever wrote the artifacts code please document
it?  Hacking the artifacts file doesn't answer all the questions,
and I don't particularly want to hack the artifacts generation
code to figure out how to make random artifacts.

Regards,
PeterM

(questions:
  I added a cloak to the game.  I wanted to make things like
'cloak of protection' or 'cloak of warmpth' or
'cloak of displacement'......

What does the value field do?
Is it kosher to have two things with the same object name?
Like this:
Allowed all
Object Protection
type 87
value 4
ac 2
end
#
Allowed all
Object Protection
type 87
value 8
ac 3
end
#