* Identify NETHACKDIR and HACKDIR as environment variables.
* ...and set them italics, not roman.
* Set default playground directory name in italics, not roman.
* Set command names in italics.
* Refer to command operands as such, not as "options".
* Use man page cross reference on first occurrence of "nethack" when
referring to the command executable as opposed to the overall game.
Because some text is commented out (`ig`nored), meaning the "first"
occurrence appears twice (what's lexically present vs. what's
formatted) do this twice as future-proofing.
* Set file names in italics, not roman. Set variable parts of file
names in roman.
* Refer to "single-user systems" instead of "microcomputers"; the latter
is becoming antiquated terminology.
* Favor present tense over future.
* Tighten wording.
* Spell "save files" consistently as two words.
G. Branden Robinson
61a16e6983