Changed the home-page of solum-specs in setup.cfg
Changed the home-page of solum-specs in setup.cfg

Instead of pointing to openstack.org, the homepage has been
changed to point to the homepage of solum-specs.

Change-Id: Ib784bb783cc7744f7f0c61abb89d3053344d5844

stackforge/solum-specs,openstack/solum-specs