Document experimental pipeline in Nova CI
Document experimental pipeline in Nova CI

Add a section in "core-review" to document how experimental pipeline would
be used by Nova developers in order to consume the resources at the
right time.

Change-Id: I5df377032c2fcec18cdf71af2568e028373bcced

openstack/nova,rajalokan/nova,gooddata/openstack-nova,vmturbo/nova,hanlind/nova,rahulunair/nova,openstack/nova,gooddata/openstack-nova,Juniper/nova,rajalokan/nova,sebrandon1/nova,mahak/nova,klmitch/nova,jianghuaw/nova,mikalstill/nova,hanlind/nova,vmturbo/nova,gooddata/openstack-nova,rajalokan/nova,openstack/nova,vmturbo/nova,klmitch/nova,hanlind/nova,Juniper/nova,klmitch/nova,jianghuaw/nova,mahak/nova,rajalokan/nova,Juniper/nova,mahak/nova,jianghuaw/nova,vmturbo/nova,rahulunair/nova,mikalstill/nova,rahulunair/nova,jianghuaw/nova,sebrandon1/nova,phenoxim/nova,gooddata/openstack-nova,mikalstill/nova,Juniper/nova,klmitch/nova,phenoxim/nova,sebrandon1/nova