freebsd-update: change one mention to a man entity.
freebsd-update: Set SRCCONF to null in both custom kernel sections.
doc: add link to FDP in "building doc from source" section.
doc: use <replaceable> in svn URL
Move indexterm in signal 11 FAQ to answer fix rendering.
Some changes suggested by Mehmet Erol Sanliturk
<m.e.sanliturk@gmail.com>.
even with a deprecation warning, is a disservice to new users.
This change removes cvsup, csup, and CVS references. SVN URLs are also
changed to the preferred form and links to the SVN mirrors are added.
Reviewed by: -doc mailing list
Define minor and major version upgrades at the start of the section.
Mention that installed applications will still run after a minor
upgrade. Split the custom kernel portion into 8.X and earlier and 9.X
and later. Make the portupgrade instructions specific to major version
upgrades.
PR: www/175069
Submitted by: George Kontostanos <gkontos.mail@gmail.com>
Reviewed by: freebsd-doc mailing list