This patch addresses the following:
- rewording for you
- fixed xref and acronym tags
- Vinum changed to <devicename>vinum</devicename>
- merge intro and 22.2
- merge 22.5.3 and 22.5.4
- modernized 22.9.1 as gvinum used since 5.x
- fixed filesystem to file system
- remove "" between literals as the literal output does not include it
Approved by: gjb (mentor)