Documented more neutrally the additional properties of v3 vs v2,
thanks to R. Fontana.
The added provisions are enumerated, without interpretation.

Signed-off-by: enyst <engel.nyst@gmail.com>
OK, additional is still better instead of explicit.
It suggests it's by difference to v2 (as it should) and
keeps the same wordcount.

Signed-off-by: enyst <engel.nyst@gmail.com>