Replace ci.o.o links with docs.o.o/infra

The http://ci.openstack.org/ documentation site has been deprecated,
replaced by redirects to corresponding paths within
http://docs.openstack.org/infra/ where other Project Infrastructure
documentation already resides.

Change-Id: I765c42294c478d88076959462c5316a620a4f24a
diff --git a/setup.cfg b/setup.cfg
index a4deb2f..620e1ac 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,7 +5,7 @@
     README.rst
 author = OpenStack Infrastructure Team
 author-email = openstack-infra@lists.openstack.org
-home-page = http://ci.openstack.org/
+home-page = http://docs.openstack.org/infra/system-config/
 classifier =
     Intended Audience :: Information Technology
     Intended Audience :: System Administrators