Update docs to remove epidemiology examples

[chartgerink]

This PR removes all the epidemiology specific examples from the documentation. It also removes some ep naming remnants from the tests.

I am opening this PR to ensure checks pass properly before merging into the open PR #19 – all for good measure 😊

[github-actions[bot]]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 1 existing dependencies (direct and indirect)
• Removes 1 existing system dependencies

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