Hi, would you mind republishing this lovely notebook? To us readers it shows with a broken hero image. Thank you!

It's a pleasant surprise that anyone was viewing this! It's been on my back burner for a while to make this notebook more coherent and approachable. In the meantime, I believe I've republished it, could you let me know if it's visible again? Thanks.

Yes, thank you! I know I'm the only person who "liked" it so far, but don't despair :)