Where can I find the online only lesson replicating Rossman sales competition?

I was studying Part 1 of the Practical deep learning for coders course. In lesson 8, Jeremy mentions an online only lesson where they have replicated the winning approach for the rossman sales competition.

Can someone tell me where I can find that lesson? I wanted to see how categorical embeddings can be interpreted .

I found this link, hope it helps:

Hey, thanks for the reply. I found the notebook useful.
Though, I want to learn how to interpret model embeddings

here are the fastai links btw