Updated openstack/openstack
Project: openstack/heat  40c8de0c3fdd98a8f8d6a1798f26f13b01a5f517

Fix broken link to API reference

The link to the API reference was pointing to api-ref-orchestration,
which is incorrect.  This changes it to api-ref-orchestration-v1.

Closes-Bug: #1320956
Change-Id: I3eb46af60dffc47e62ffbfc9f407f7f1a86a56a1