Andreas Jaeger 489f9fbac2 Switch to newer openstackdocstheme and reno versions
Switch to openstackdocstheme 2.2.1 and reno 3.1.0 versions. Using
these versions will allow especially:
* Linking from HTML to PDF document
* Allow parallel building of documents
* Fix some rendering problems

Update Sphinx version as well.

Set openstackdocs_pdf_link to link to PDF file. Note that
the link to the published document only works on docs.openstack.org
where the PDF file is placed in the top-level html directory. The
site-preview places the PDF in a pdf directory.

Set openstackdocs_auto_name to use 'project' as name.

Change pygments_style to 'native' since old theme version always used
'native' and the theme now respects the setting and using 'sphinx' can
lead to some strange rendering.

Remove docs requirements from lower-constraints, they are not needed
during install or test but only for docs building.

openstackdocstheme renames some variables, so follow the renames
before the next release removes them. A couple of variables are also
not needed anymore, remove them.

See also

Change-Id: I88d35727272813aa5371969e3ea3e763e1a12700
2020-05-21 10:36:00 +02:00
configuration Add Cloud Shell feature 2017-10-30 17:08:59 +09:00
contributor Disable auto-generate API docs 2019-10-26 20:36:06 +00:00
install Update installation docs 2019-11-25 11:46:53 +00:00
conf.py Switch to newer openstackdocstheme and reno versions 2020-05-21 10:36:00 +02:00
index.rst Replace git.openstack.org URLs with opendev.org URLs 2019-04-27 02:56:44 +00:00