doc-rst: dev-subdev: fix some format issues

The conversion from DocBook made somethings look ugly.
Improve them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-07-04 18:47:13 -03:00
commit c6f7b0f213