doc-rst: subdev-formats: Improve figure caption

Add a numbering for the figure.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-07-04 18:53:54 -03:00
commit 0c15aefd9e