Fix sphinx deprecation changres

Author: sdodsley

setup.cfg

@@ -1,11 +1,11 @@
 [metadata]
 name = openstack-deploy-ops-guide
 summary = OpenStack Deployment and Operations Guide
-description-file =
+description_file =
     README.md
 author = Pure Storage Inc.
-author-email = ng-openstack-dev@purestorage.com
-home-page = https://purestorage.com
+author_email = ng-openstack-dev@purestorage.com
+home_page = https://purestorage.com
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology