To run visit https://colab.research.google.com/
Go to File > Upload Notebook.
On the ensuing prompy, select the Github tab and enter https://github.com/jaspajjr/pick-n-mix-python-data-analysis
Start by selecting the getting-start.ipynb file.
Alternatively, if you're familiar with Jupyter Notebooks, this git repo can be cloned and run as normal.