Updated zork documentation for old and new zorks using heasm66's recommendations.

doc/cfs/madadv.info

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+Welcome to Zork!
+
+    You are near a large underground labyrinth, which is reputed to
+contain vast quantities of treasure.  Naturally, you wish to acquire
+some of it. In order to do so, you must of course remove it from the
+caverns; to receive full credit for it, you must deposit it safely in
+the trophy case in the living room.
+    
+    In addition to valuables, the cave contains various objects which
+may or may not be useful in your attempt to get rich; you may need
+sources of light, since caves are often dark, and weapons, since
+dungeons often have unfriendly things wandering about.  Reading material
+is scattered around as well; some of it is rumoured to be useful.
+
+    To determine how successful you have been, there is a score kept.
+When you find a valuable object (i.e., pick it up), you receive a
+certain number of points, which depends on the difficulty of finding
+it.  You receive extra points for transporting the treasure safely to
+the living room, and placing it in the trophy case.  In addition,
+some particularly interesting rooms  have a value associated with
+your entering them.  The only penalty is for getting yourself killed,
+which you may do only twice.
+
+    Of special note is a thief (always carrying a large bag) who likes
+to wander around underground (he has never been seen by the light of
+day).  He likes to take things; since he steals for pleasure rather than
+profit, and is sadistic, he only takes things which you have seen.
+Although he prefers valuables, sometimes in his haste he may take
+something which is worthless; from time to time, he examines his take
+and discards objects which he doesn't like.  He may occasionally stop in
+a room you are visiting, but more often he just wanders through and rips
+you off (he is a skilled pickpocket).
+
+    Have Fun!