Add release note links for cloudkitty projects for Yoga

This generated patch adds yoga release note page link if that page
exists for a deliverable.

If any of your deliverables does not have a release note link added in
this patch, then please check whether there is an open patch on that
repository with the topic "reno-yoga" [1] still waiting to be approved.

[1] https://review.opendev.org/q/topic:reno-yoga

Change-Id: I1fcfb5a9751d05240186921fd426ca53121b72b0

deliverables/yoga/cloudkitty-dashboard.yaml

@@ -14,3 +14,4 @@ releases:
 branches:
   - name: stable/yoga
     location: 14.0.0.0rc1
+release-notes: https://docs.openstack.org/releasenotes/cloudkitty-dashboard/yoga.html

deliverables/yoga/cloudkitty.yaml

@@ -14,3 +14,4 @@ releases:
 branches:
   - name: stable/yoga
     location: 16.0.0.0rc1
+release-notes: https://docs.openstack.org/releasenotes/cloudkitty/yoga.html

deliverables/yoga/python-cloudkittyclient.yaml

@@ -18,3 +18,4 @@ releases:
 branches:
   - name: stable/yoga
     location: 4.5.0
+release-notes: https://docs.openstack.org/releasenotes/python-cloudkittyclient/yoga.html