Fix broken link
Fix broken link

It's "configuration" in the URL - the current link gives a 404. Also,
add "." at end of sentence.

Change-Id: I6cda57f0d7027a2b697b9a562cc13d0821428cbc

openstack/nova,klmitch/nova,phenoxim/nova,rahulunair/nova,mahak/nova,klmitch/nova,openstack/nova,gooddata/openstack-nova,phenoxim/nova,gooddata/openstack-nova,mikalstill/nova,gooddata/openstack-nova,gooddata/openstack-nova,mahak/nova,klmitch/nova,mikalstill/nova,openstack/nova,mikalstill/nova,klmitch/nova,mahak/nova,rahulunair/nova,rahulunair/nova