Documentation/HOWTO: update information about generating documentation

The description there are pre-Sphinx. Update it to cover the
new way.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2016-09-19 08:07:57 -03:00 • committed by Jonathan Corbet
commit 43fb67a525