switch documentation job to new PTI

This is a mechanically generated patch to switch the documentation
jobs to use the new PTI versions of the jobs as part of the
python3-first goal.

See the python3-first goal document for details:
https://governance.openstack.org/tc/goals/stein/python3-first.html

Change-Id: Ie8da44c2a1360eece2ea47d131af214e9d4dbec8
Story: #2002586
Task: #24292
diff --git a/.zuul.yaml b/.zuul.yaml
index 6a19761..9cc66cf 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -2,7 +2,7 @@
     templates:
       - designate-devstack-jobs
       - check-requirements
-      - publish-openstack-sphinx-docs
+      - publish-openstack-docs-pti
       - tempest-plugin-jobs
     check:
       jobs:
diff --git a/doc/source/conf.py b/doc/source/conf.py
index d6ccf8e..fa9065a 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -127,7 +127,7 @@
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+# html_static_path = ['_static']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
diff --git a/doc/source/index.rst b/doc/source/index.rst
index ac57e68..82eda14 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -245,7 +245,7 @@
 
 
 @decorators.attr
-~~~~~~~~~~
+~~~~~~~~~~~~~~~~
 
 The `attr` decorator is used to set test attributes, this is most commonly used
 to set the test type. Currently, we use one test type "smoke", which should be