Data files can be downloaded from the same link. Please note that the link that you have pasted above has some issues. Please use this link http://files.fast.ai/data/
I’m looking at Deep Learning Lesson 1 of Part 2 (ie. starts with Lesson 8) as I already have a copy of that Github for DeepLeaning1 (lessons from 5 months ago).
My understanding is that Part 2 is hosted differently than Part 1: no wiki.fast.ai and no github.