Nicer Sphinx documentation

The documentation website made using Sphinx (https://cuspaceflight.github.io/bamboo/) isn't bad, but can likely be made cleaner and more readable/useful.

Start by reviewing the Sphinx documentation website at https://cuspaceflight.github.io/bamboo/ and the documentation source that generates it. Identify specific readability, organization, or usefulness improvements before making changes. Done means the site is demonstrably cleaner, more readable, and more useful, but the issue does not define concrete acceptance criteria.

Written by the indexing model from the issue text.