DOC: update documentation style

[matthew-powers-db]

Quinn version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

all of them

Documentation problem

syntax is off

Suggested fix for documentation

- pymdownx.highlight:
  anchor_linenums: true
  line_spans: __span
  pygments_lang_class: true
- pymdownx.inlinehilite
- pymdownx.snippets
- pymdownx.superfences

This snippet should be added to quinn and (maybe) chispa. Otherwise syntax highlighting in docs is not working