vm.8: corrections, other changes

[grahamperrin]

Fix formatting.

Change 'set' to 'see' in one place.

In at least one place, a subcommand was described as such. In other places, subcommands were not (were described as commands); aim to be consistent.

[grahamperrin]

Under https://man.freebsd.org/cgi/man.cgi?query=vm&sektion=8&manpath=freebsd-ports#GUEST_CONFIGURATION_FORMAT, a link is broken:

https://wiki.freebsd.org/bhyve/pci_passthru

– the _passthru part does not form part of the link.

I don't know what's wrong here.

The current source is consistent with an example under https://man.freebsd.org/cgi/man.cgi?query=mdoc&sektion=7&manpath=freebsd-release#MACRO_REFERENCE:

.Lk https://bsd.lv/

FreeBSD bug:

• 271479 – An underscore character _ within a URL seems to be misinterpreted as the end of a link

[grahamperrin]

Under https://man.freebsd.org/cgi/man.cgi?query=vm&sektion=8&manpath=freebsd-ports#GUEST_CONFIGURATION_FORMAT (using the freebsd-ports approach):

session from the 'iscsictl(8) -L' command output, and

The linked page does not exist.

https://man.freebsd.org/cgi/man.cgi?query=iscsictl&sektion=8&manpath=freebsd-release does exist. There should be a method of referring to the required page that does not break when the referring page uses freebsd-ports.

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Breakage aside: the phrase can be improved, to not imply that (8) is (verbatim) part of a command.