Update bios-bits docs to add more details on why a pre-OS environment for
testing bioses is useful. Add author's FOSDEM talk link. Also improve the
formating of the document while at it.
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>