Bump openstackdocstheme to 1.20.0
Some options are now automatically configured by the version 1.20:
- project
- html_last_updated_fmt
- latex_engine
- latex_elements
- version
- release.
Change-Id: Iad7ed84d2560c7829be20c24e41299b60283cccb
diff --git a/doc/requirements.txt b/doc/requirements.txt
index 67530ff..b03ff2c 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,7 +1,8 @@
# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7' # BSD
+sphinx!=1.6.6,!=1.6.7,!=2.1.0,>=1.6.2;python_version>='3.4' # BSD
+openstackdocstheme>=1.20.0 # Apache-2.0
reno>=2.5.0 # Apache-2.0
sphinxcontrib-apidoc>=0.2.0 # BSD