cleanups for dev workflow descriptions
cleanups for dev workflow descriptions

Use named links and refer to storyboard instead of launchpad.

Change-Id: I059859c809351dbc34ffbd8c5ce75676ea7d16e3
Story: 1588309
Signed-off-by: Doug Hellmann <0798ebecfb7bc4dfb9d0445c2fa030eb64e1fa1c@doughellmann.com>

openstack/reno