Feature pertpy use-cases in our tutorial

[Zethson]

Description of feature

We have such great use-cases that combine several of pertpy's modules, but they're hidden in our reproducibility repository.

It'd be great if we could find a way to feature and render them better in our docs.

[Lilly-May]

Note to myself:

• [X] Norman use-case
• [X] McFarland use-case
• [X] Zhang use-case excl. DIALOGUE
• [ ] Zhang use-case DIALOGUE