The project consists of a chart.py file for plotly chart generation and an html file index.html with plotly chart.
Link to the page with the chart.
It's better to name your html file "index.html" so it will be accessible as the main page.
Othervise, you will have to specify the file name in the address, like:
https://darkitechtor.github.io/github-pages-example/non-standard_name.html
.
Instead of:
https://darkitechtor.github.io/github-pages-example/
.