Course Notation Location?

挨拶 Hello. Week 2, Logistic Regression as a Neural Network, video 1, Binary classification, for Deep Learning Specialization course 1. In other words… here

Instructor says, " If you ever forget what a piece of notation means, like what is M or what is N or what is something else, we’ve also posted on the course website a notation guide that you can use to quickly look up what any particular piece of notation means."

I’m sorry, I could not find this notation anywhere. Can I be pointed to where I can find it please? I apologize if I didn’t see the obvious.

It’s on Coursera, in the Resources page for the DLS course.

It is under the Resources section on any of the course pages, as highlighted in this screenshot: