Sync Sphinx requirement
1. Sync sphinx dependency with global requirements. It caps python 2 since
sphinx 2.0 no longer supports Python 2.7.
2. Remove unncessary "=="
Change-Id: I6988ed388cc6543bc49e62172aa93f34fdca8e95
diff --git a/releasenotes/source/index.rst b/releasenotes/source/index.rst
index 1788b85..0766931 100644
--- a/releasenotes/source/index.rst
+++ b/releasenotes/source/index.rst
@@ -1,6 +1,6 @@
-============================================
- octavia_tempest_plugin Release Notes
-============================================
+====================================
+octavia_tempest_plugin Release Notes
+====================================
.. toctree::
:maxdepth: 1
diff --git a/releasenotes/source/unreleased.rst b/releasenotes/source/unreleased.rst
index cd22aab..875030f 100644
--- a/releasenotes/source/unreleased.rst
+++ b/releasenotes/source/unreleased.rst
@@ -1,5 +1,5 @@
-==============================
- Current Series Release Notes
-==============================
+============================
+Current Series Release Notes
+============================
.. release-notes::