Feedback requested: bioassay example, Windows RuntimeError, and docs improvements

Hi @fonnesbeck

I’ve been working through your Data Umbrella talk on PyMC and found it extremely helpful. Thank you for the great introduction to PyMC.

While following the example Bioassay Problem model, I encountered a few issues on Windows (specifically a multiprocessing Runtime error) and with the documentation present in the PyMC repository. Based on that, I opened an issue and a draft PR with a beginner-friendly, Windows-compatible example inspired by your tutorial.

I’d really appreciate it if you could take a look, when you have time, and share your feedback on whether the approach aligns with best practices. (This is my first-ever PR so please forgive any mistakes on my part)

Issue: #8126 (DOC+BUG: Confusing sampling example and RuntimeError on Windows in usage_overview.rst · Issue #8126 · pymc-devs/pymc · GitHub)
Draft PR: #8127 ([Draft] feat(example): add Windows-friendly bioassay example + docs (inspired by Chris Fonnesbeck talk) by hridaiiiEx · Pull Request #8127 · pymc-devs/pymc · GitHub)

Thank you again for your work and guidance!