Where is the "Walkthrough of Two Codecademy Pull Requests"?

on this page:
https://www.codecademy.com/courses/learn-git-github/articles/how-to-write-a-good-pull-request
it says (at the bottom) that there will be a walkthrough of two pull requests:
“To give you more exposure, we will be walking through the following two pull requests from the Codecademy GitHub organization.”
however, there is no walkthrough just links to some github pages (which no doubt if one were experienced would be helpful - but i’m not, which is why i am doing the course!!).
is this content coming and just not in the course because it is in beta? pull requests can be quite tricky and i would really appreciate detailed walkthroughs of real-world PRs.
thx, julian

I believe the video is now at the bottom of that page.