media: dvbproperty.rst: minor editorial changes

Do some minor editorial changes to make this chapter visually
better, and the example a little bit clearer.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2017-08-26 06:07:14 -04:00
commit f3ee363fc1