Comment 2 for bug 1400461

Reviewed: https://review.openstack.org/140124
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=97ab88d818f659d0a0be3c79962dd6edfd2ff35e
Submitter: Jenkins
Branch: master

commit 97ab88d818f659d0a0be3c79962dd6edfd2ff35e
Author: Ruby Loo <email address hidden>
Date: Mon Dec 8 19:19:30 2014 +0000

    Update dev quick-start for devstack

    The devstack section of the developer's quick-start documentation is
    updated:
    1. replaces the https://devstack.org link (doesn't work) with
       http://docs.openstack.org/developer/devstack/
    2. clarifies how to configure usage of the PXE or agent driver

    Change-Id: I2220f685c862832f73b28157355e11c7b49ce29b
    Closes-Bug: #1400461