Fix release note for ansible_facts

Change-Id: I0103d7ef55e6aebe043a582d36f1a2efa137f447

releasenotes/notes/ansible-facts-4279741e84c03ce0.yaml

@@ -4,7 +4,7 @@ upgrade:
     Updates all references to Ansible facts within Kolla Ansible from using
     individual fact variables to using the items in the ``ansible_facts``
     dictionary. This allows users to disable `fact variable injection
-    <https://docs.ansible.com/ansible/latest/reference_appendices/config.html#inject-facts-as-vars>
-    __ in their Ansible configuration, which may provide some performance
+    <https://docs.ansible.com/ansible/latest/reference_appendices/config.html#inject-facts-as-vars>`__
+    in their Ansible configuration, which may provide some performance
     improvement. Check for facts referenced in local configuration files, and
     update to use ``ansible_facts`` before disabling fact variable injection.