It's recommended you go to this website for a demo instead.
To set up the Selenium demo, set up a virtual environment in the demo/selenium directory and run venv/bin/pip install ..
By default, the demo runs in the Firefox browser.
To run in Firefox, you may need to install the geckodriver executable.
The code in main.py should be editable so that it works for any webdriver-supported browser. It's worth noting that it takes a while for the page to load up in Chrome, which is why Firefox is the default.