Optimize the link address

Use https instead of http to ensure the safety

Change-Id: I4b8be0de1331450753508517558acdcca66e94c5
diff --git a/setup.cfg b/setup.cfg
index d8c9505..f76d172 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,7 +5,7 @@
     README.rst
 author = OpenStack
 author-email = openstack-dev@lists.openstack.org
-home-page = http://docs.openstack.org/developer/patrole/
+home-page = https://docs.openstack.org/developer/patrole/
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology