Make the options more clear by providing them in a list instead of plain prosa.
Also add a ref for a presentation wrt spdx 3.0 in the Yocto project.
Fixes [YOCTO 7476]
(From yocto-docs rev: 9e5956736a9b6e6c99967d120303d5142550fdb1)
Signed-off-by: Simone Weiß <simone.p.weiss@posteo.com>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
f4356b6716