Documentation polishing.

notes.adoc

@@ -54,6 +54,7 @@ Bug fixes:
 * Behavior when saying the giant's magic words outside his room wasn't
   quite correct - the game responded as though the player were in
   the room ("...can't you read?"). The new message is "Nothing happens."
+  The -o option reverts this change.
  
 * Attempting to extinguish an unlit urn caused it to lose its oil.
 
@@ -66,7 +67,7 @@ Bug fixes:
   "eying" for "eyeing". "thresholds" for "threshholds".
 
 * Under odd circumstances (dropping rug or vase outdoors) the game could
-  say "floor" when it should say "ground" (or "dirt", or something).
+  formerly say "floor" when it should say "ground" (or "dirt", or something).
 
 Bugs (accidental changes that don't seem worth the effort to fix):
 
@@ -98,6 +99,7 @@ that random events (dwarf & pirate appearances, the bird's magic word)
 will be reproducible.
 
 A "version" command has been added. This has no effect on gameplay.
+
 The text displayed by the "news" command has been updated.
 
 A -l command-line option has been added. When this is given (with a
@@ -166,6 +168,9 @@ afl (American Fuzzy Lop).  We've found and fixed some crashers in
 our new code (which occasionally uses malloc(3)), but none as yet
 in Don's old code (which didn't).
 
+After version 1.11, correctness was carefully checked against the
+behavior of a binary from before the big refactoring.
+
 The code falls short of being fully modern C in the following
 ways: