General purpose reformating and rewording in (a few places). This should
also make markdown linting happier.
Prefer back-ticks wherever useful and use `console` for code blocks to
be executed on terminal.
Also, update references links wherever possible (including update from
'http://' to 'https://').
Multiplexer titles can be set independent of window and tab titles.
Add auto-title always option to have dynamic titling inside terminal
multiplexers. Setting auto-title to yes continues to ignore dynamic
titling inside terminal multiplexers.
This patch should not alter behavior under Apple terminals.
