gjb c656e62175 Add an example for building SD card images for the RPI-B and
RPI3.

MFC after:	3 days
Suggested by:	Arshan Khanifar
Reviewed by:	Arshan Khanifar <arshan@freebsdfoundation.org>
Sponsored by:	The FreeBSD Foundation
2018-03-28 18:43:06 +00:00
..
2018-03-28 07:59:16 +00:00
2018-03-06 14:31:15 +00:00