quickstarter.ipynb not working with Python 3.8

[caimeng2]

Hi, please double check if your package is compatible with Python 3.8, as indicated in the toml file. I tested it in a conda environment with Python 3.8, and got

ImportError: cannot import name 'files' from 'importlib.resources'

when running the first cell of quickstarter.ipynb. I tried using importlib_resources instead of importlib.resources but encountered another error. So I wasn’t able to reproduce your example results. This problem did not occur for Python 3.9 or 3.10. If the package does work with Python 3.8, please fix quickstarter.ipynb.

reference: openjournals/joss-reviews#6712