Add releasenote to tag the Tempest for Ussuri release

This commit adds the releasenote to tag Tempest for Ussuri
and needed for version 24.0.0 to release.

Change-Id: Ic9c06f6457b1b4d13d57a86a7c7ed0d0dca0c082
diff --git a/releasenotes/notes/tempest-ussuri-release-72b5770a3b97678f.yaml b/releasenotes/notes/tempest-ussuri-release-72b5770a3b97678f.yaml
new file mode 100644
index 0000000..37e56bb
--- /dev/null
+++ b/releasenotes/notes/tempest-ussuri-release-72b5770a3b97678f.yaml
@@ -0,0 +1,16 @@
+---
+prelude: >
+    This release is to tag the Tempest for OpenStack Ussuri release.
+    This release marks the start of Ussuri release support in Tempest.
+    After this release, Tempest will support below OpenStack Releases:
+
+    * Ussuri
+    * Train
+    * Stein
+
+    Current development of Tempest is for OpenStack Victoria development
+    cycle. Every Tempest commit is also tested against master during
+    the Victoria cycle. However, this does not necessarily mean that using
+    Tempest as of this tag will work against a Ussuri (or future release)
+    cloud.
+    To be on safe side, use this tag to test the OpenStack Ussuri release.