PR Summary

This fixes some minor typos on module pages, and some tweaks to callouts and inheritance diagrams.

Strong recommendations at the top of module are now .. important, less strong are now .. note. I dropped extra classes from the date and transform inheritance diagrams. I'm not sure if Artist should hide _AnnotationBase and ScalaraMappable as well?

I also noted that the table is lightly maintained and that blume may be preferable, but I'm not sure if we should just point at the third-party page in general?

PR Checklist

• [n/a] Has pytest style unit tests (and pytest passes).
• Is Flake 8 compliant (run flake8 on changed files to check).
• [n/a] New features are documented, with examples if plot related.
• Documentation is sphinx and numpydoc compliant (the docs should build without error).
• Conforms to Matplotlib style conventions (install flake8-docstrings and run flake8 --docstring-convention=all).
• [n/a] New features have an entry in doc/users/next_whats_new/ (follow instructions in README.rst there).
• [n/a] API changes documented in doc/api/next_api_changes/ (follow instructions in README.rst there).