Guidebook update: armor and other objects

Condense the clunky one entry per line table of suits of armor and
their AC values in Guidebook.mn.  Guidebook.tex uses a two-column table
that I've left alone.

Mention all the other types of armor instead of leaving out gloves and
shirts.  For armor commands, mention that P and R work.

Rings:  describe their interaction with gloves.  For ring commands,
include a pointer to amulets.

Amulets:  for amulet commands, mention that A, W, and T work.

Tools:  mention that some can be worn and include a pointer to amulets
for the relevant commands.  Also, that some can be wielded as weapons.

Boulders and statues:  boulders can be pushed and smashed, statues can
be smashed.

Gold:  not subject to blessing or cursing.  goldX option affects BUCX
filtering.

doc/Guidebook.tex

@@ -2509,8 +2509,9 @@ protection than others.  Your armor class is a measure of this
 protection.  Armor class (AC) is measured as in AD\&D, with 10 being
 the equivalent of no armor, and lower numbers meaning better armor.
 Each suit of armor which exists in AD\&D gives the same protection in
-{\it NetHack}.  Here is an (incomplete) list of the armor classes provided by
-various suits of armor:
+{\it NetHack}.
+
+Here is a list of the armor class values provided by suits of armor:
 
 \begin{center}
 \begin{tabular}{lllll}
@@ -2527,11 +2528,17 @@ leather jacket         & 9 &                   & no armor              & 10\\
 \end{center}
 
 %.pg
-\nd You can also wear other pieces of armor (for example, helmets, boots,
-shields, cloaks)
-to lower your armor class even further, but you can only wear one item
-of each category (one suit of armor, one cloak, one helmet, one
-shield, and so on) at a time.
+\nd You can also wear other pieces of armor (cloak over suit, shirt under
+suit, helmet, gloves, boots, shield) to lower your armor class even
+further.
+You can wear at most one item of each category (one suit of armor, one
+cloak, one helmet, one shield, and so on) at a time.
+Most of these provide a one or two point improvement to AC but can be
+enchanted.
+Shirts are an exception; they don't provide any protection unless enchanted.
+Some cloaks also don't improve AC when unenchanted but all cloaks offer
+some protection against rust or corrosion to suits worn under them and
+against some monster {\it touch\/} attacks.
 
 %.pg
 If a piece of armor is enchanted, its armor protection will be better
@@ -2547,10 +2554,19 @@ addition to being unremovable.
 Many types of armor are subject to some kind of damage like rust.  Such
 damage can be repaired.  Some types of armor may inhibit spell casting.
 
+%.pg
+The {\it nudist\/}
+option can be set (prior to game start) to attempt to play the entire
+game without wearing any armor (a self-imposed challange which is
+extremely difficult to accomplish).
+
 %.pg
 The commands to use armor are `{\tt W}' (wear) and `{\tt T}' (take off).
-The `{\tt A}' command can also be used to take off armor as well as other
+The `{\tt A}' command can be used to take off armor as well as other
 worn items.
+Also, `{\tt P}' (put on) and `{\tt R}' (remove) which are normally for
+accessories can be used for armor, but pieces of armor won't be shown
+as likely candidates in a prompt for choosing what to put on or remove.
 
 %.hn 2
 \subsection*{Food (`{\tt \%}')}
@@ -2681,15 +2697,25 @@ magic, unlike the usually fleeting effects of potions, scrolls, and
 wands.
 
 %.pg
-Putting on a ring activates its magic.  You can wear only two
-rings, one on each ring finger.
+Putting on a ring activates its magic.
+You can wear at most two rings at any time, one on the ring finger of
+each hand.
 
 %.pg
 Most rings also cause you to grow hungry more rapidly, the rate
 varying with the type of ring.
 
+%.pg
+When wearing gloves, rings are worn underneath.
+If the gloves are cursed, rings cannot be put on and any already being
+worn cannot be removed.
+When worn gloves aren't cursed, you don't have to manually take them
+off before putting on or removing a ring and then re-wear them after.
+That's done implicitly to avoid unnecessary tedium.
+
 %.pg
 The commands to use rings are `{\tt P}' (put on) and `{\tt R}' (remove).
+`{\tt A|', `{\tt W}', and `{\tt T}' can also be used; see {\it Amulets\/}.
 
 %.hn 2
 \subsection*{Spellbooks (`{\tt +}')}
@@ -2758,7 +2784,14 @@ out after a while.  Other tools are containers, which objects can
 be placed into or taken out of.
 
 %.pg
-The command to use tools is `{\tt a}' (apply).
+Some tools (such as a blindfold) can be {\it worn\/} and can be put on and
+removed like other accessories (rings, amulets); see {\it Amulets\/}.
+Other tools (such as pick-axe) can be wielded as weapons in addition to
+being applied for their usual purpose, and in some cases (again, pick-axe)
+become wielded as a weapon even when applied.
+
+%.pg
+The command to use a tool is `{\tt a}' (apply).
 
 %.hn 3
 \subsection*{Containers}
@@ -2794,6 +2827,11 @@ Only one amulet may be worn at a time, around your neck.
 %.pg
 The commands to use amulets are the same as for rings, `{\tt P}' (put on)
 and `{\tt R}' (remove).
+`{\tt A}' can be used to remove various worn items including amulets.
+Also, '{\tt W}' (wear) and `{\tt T}' (take off) which are normally for
+armor can be used for amulets and other accessories (rings and eyewear),
+but accessories won't be shown as likely candidates in a prompt for
+choosing what to wear or take off.
 
 %.hn 2
 \subsection*{Gems (`{\tt *}')}
@@ -2816,8 +2854,17 @@ Statues and boulders are not particularly useful, and are generally
 heavy.  It is rumored that some statues are not what they seem.
 
 %.pg
-Very large humanoids (giants and their ilk) have been known to use boulders
-as weapons.
+Boulders occasionally block your path.
+You can push one forward when nothing blocks {\it its\/} path, or you can
+smash it into a pile of small rocks with breaking magic or a pick-exe.
+Very large humanoids (giants and their ilk) have been known to pick up
+boulders and use them as missile weapons.
+
+%.pg
+Unlike boulders, statues can't be pushed, but don't need to be because
+they don't block movement.
+%.\" 'rumor' above is about statue traps; this is a hint about statue contents
+They can be smashed into rocks though.
 
 %.pg
 For some configurations of the program, statues are no longer shown
@@ -2833,6 +2880,17 @@ There are a number
 of monsters in the dungeon that may be influenced by the amount of gold
 you are carrying (shopkeepers aside).
 
+%.pg
+Gold pieces are the only type of object where bless/curse state does not
+apply.
+They're always uncursed but never described as uncursed even if you turn
+off the ``{\it implicit\verb+_+uncursed\/}'' option.
+You can set the ``{\it goldX\/}''
+option if you prefer to have gold pieces be treated as bless/curse state
+{\it unknown\/} rather than as known to be uncursed.
+Only matters when you're using an object selection prompt that can filter
+by ``{\tt BUCX}'' state.
+
 %.hn 2
 \subsection*{Persistence of Objects}