Update document theme and section headers
This commit updates the document theme. It is clear, simple, up-to-date
and beautiful. And this commit also updates section headers to fix the
document index.
Change-Id: Ia1e8e16e5f5ddb06e4c4ccb4979b0750b88a4db4
diff --git a/releasenotes/source/index.rst b/releasenotes/source/index.rst
index adec7a7..d2be814 100644
--- a/releasenotes/source/index.rst
+++ b/releasenotes/source/index.rst
@@ -1,5 +1,5 @@
===========================
- tempest Release Notes
+ Tempest Release Notes
===========================
.. toctree::