[media] v4l2-event.rst: add cross-references and markups

Improve events documentation by adding cross references,
sub-titles and other markup elements.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-07-22 08:43:30 -03:00
commit d231685682