Missing data for air_quality demo

[danieliong]

I'm trying to go through the demo in demos/air_quality.py but noticed the aq_data.csv file that it reads is missing in data/

[wil-j-wil]

Hi,

You can find that file here: https://drive.google.com/file/d/1QcbzFJyAr95zY-B1r-0MkzcX7TReaF6C/view?usp=sharing