This leaves an appropriatesummary on the website pages, committer's
guide and contributing pages, and augments license-guide with
information that was on those pages (though the license exceptions
moves to software-license).

It's mostly word motion with light edits.

Sponsored by:		Netflix
Reviewed by:		ziaee, adrian
Approved by:		core (24 hour rule)
Differential Revision:	https://reviews.freebsd.org/D57340

* Allow to build the documentation offline using Hugo
* Fix link problems
* Remove SVN entities
* Fix lang problems to help weblate
* Move all the AsciiDoctor translations to the shared folder to
  help weblate
* Allow the possibility to build each document. For example each
document can be edited in and watched the result in real time in
VS Code or Vim/NeoVim.

Breaking changes:

Eliminate the possibility of building books or articles.
They must be builded at the same time.
This functionality will be restored when version 0.89.0 is in the
repositories in a couple of weeks.

Reviewed by:            dbaio@
Differential Revision:  https://reviews.freebsd.org/D31926

mailman-lists-desc --> mailing-lists-desc
mailman-lists-url  --> mailing-lists-url
mailman-lists      --> mailing-lists

Following mailing lists migration from Mailman to Mlmmj.

Following mailing lists migration from Mailman to Mlmmj.

Reviewed by:	bapt
Differential Revision: https://reviews.freebsd.org/D32466

I'm very pleased to announce the release of
our new website and documentation using
the new toolchain with Hugo and AsciiDoctor.

To get more information about the new toolchain
please read the FreeBSD Documentation Project Primer[1],
Hugo docs[2] and AsciiDoctor docs[3].

Acknowledgment:
Benedict Reuschling <bcr@>
Glen Barber <gjb@>
Hiroki Sato <hrs@>
Li-Wen Hsu <lwhsu@>
Sean Chittenden <seanc@>
The FreeBSD Foundation

[1] https://docs.FreeBSD.org/en/books/fdp-primer/
[2] https://gohugo.io/documentation/
[3] https://docs.asciidoctor.org/home/

Approved by:    doceng, core