Consider whether it's worth keeping the student TODOs or show full complete .ipynbs

[jonfroehlich]

So, I originally created the project-based ipynbs as templates for students to start with for their projects.

Given that I haven't used these assignments since 2020, I wonder if it's better to now just publish the full ipynbs with "the answers." I'd need to find those ipynbs, unfortunately. 🤣