The asset link does not seem to be working on the GameDev.TV site or the Udemy site.
You can get the assets from the Git link for the project changes.
The Teachable site is still giving me issues, but this link is working now.
Weird. It worked for me. Maybe it was just a temporary issue.
Could be. The page that it took me to listed that it was not getting a response from the Teachable server, or something along those lines. I downloaded the assets from the Git resource and continued on.