Move the short description about when to use which of the submission
options to the top of the section, as it currently sits somewhat odd in
the middle between option 3 and examples of option 1.

Also move the examples of Option 1 into the section describing it (which
in the diff looks like option 2 and 3 are moving down).

No text changes, just moving it around.

CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/16f2377ee40dd7dfa146727fcbe7d1ebccf5b5be.1691219455.git.linux@leemhuis.infoSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>