Add a page for release 16.1 to release notes

Change-Id: Id148a6cc78c99218a6bca31fa6739cb84d1b49e2
diff --git a/releasenotes/source/v16.1.0.rst b/releasenotes/source/v16.1.0.rst
new file mode 100644
index 0000000..e24a70f
--- /dev/null
+++ b/releasenotes/source/v16.1.0.rst
@@ -0,0 +1,6 @@
+=====================
+v16.1.0 Release Notes
+=====================
+
+.. release-notes:: 16.1.0 Release Notes
+   :version: 16.1.0