The mention of LibertyBSD was removed in the OpenBSD page, because
according to the LibertyBSD web page: "LibertyBSD's dormant, and in
archive-mode."[1]. The LibertyBSD project also point to the
HyperbolaBSD project as a future alternative to LibertyBSD ("Support
HyperbolaBSD!"[1].).
[1]https://libertybsd.net/
Given that we still mention that the tutorial was made for LibertyBSD
as well but we point to the BSD index page for the warnings and a way
forward (which is basically HyperbolaBSD) to improve support for BSD
systems in GNU Boot.
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>