[codespell] fix typos
This change fixes typos in tempest code, doc, zuul yaml
and tox.ini file, which are found by codespell.
Change-Id: I8051d979e28f7dbf532181f339cbef9cd7220c76
diff --git a/doc/source/stable_branch_support_policy.rst b/doc/source/stable_branch_support_policy.rst
index 9c2d1ed..cea632b 100644
--- a/doc/source/stable_branch_support_policy.rst
+++ b/doc/source/stable_branch_support_policy.rst
@@ -23,7 +23,7 @@
switch to running Tempest from a tag with support for the branch, or exclude
a newly introduced test (if that is the cause of the issue). Tempest will not
be creating stable branches to support *Extended Maintenance* phase branches, as
-the burden is on the *Extended Maintenance* phase branche maintainers, not the Tempest
+the burden is on the *Extended Maintenance* phase branch maintainers, not the Tempest
project, to support that branch.
.. _Extended Maintenance policy: https://governance.openstack.org/tc/resolutions/20180301-stable-branch-eol.html