Create releasenotes page for tempest 34.0.0

Change-Id: Ifceec758bd48c916682edb1db78585c87f7eb730
diff --git a/releasenotes/source/index.rst b/releasenotes/source/index.rst
index ccd5fe1..882413f 100644
--- a/releasenotes/source/index.rst
+++ b/releasenotes/source/index.rst
@@ -6,6 +6,7 @@
    :maxdepth: 1
 
    unreleased
+   v34.0.0
    v33.0.0
    v32.0.0
    v31.1.0