docs: remaining warnings in documentation build #1235
Description
After I've fixed the documentation build and a fair amount of emitted warnings, there are still a few warnings left that I can't fix, here's an excerpt from the log:
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/cfg_styling.rst:385: CRITICAL: Title level inconsistent:
Time Series Animation
%%%%%%%%%%%%%%%%%%%%% [docutils]
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/cfg_styling.rst:406: CRITICAL: Title level inconsistent:
Feature Info Multi-Date Custom Includes (custom_includes)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% [docutils]
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/configuration.rst:272: CRITICAL: Title level inconsistent:
Behaviour of Lists
++++++++++++++++++ [docutils]
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/configuration.rst:368: CRITICAL: Title level inconsistent:
Metadata Separation
+++++++++++++++++++ [docutils]
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/configuration.rst:421: CRITICAL: Title level inconsistent:
Internationalisation/Translation of Metadata
++++++++++++++++++++++++++++++++++++++++++++ [docutils]
../HISTORY.rst:506: ERROR: Unknown target name: "value_map". [docutils]
/home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/README.rst:42: WARNING: image file not readable: docs/diagrams/ows_diagram1.9.png [image.not_readable]
...
writing output... [ 97%] styling_howto_jupyter
writing output... [100%] usage
generating indices... /home/docs/checkouts/readthedocs.org/user_builds/datacube-ows/checkouts/latest/docs/cfg_layers.rst:247: WARNING: undefined label: 'manual-merge-manual-merge' [ref.ref]
Would be great if someone else solved these so we get a warning-free documentation build