How show a GitHub page as part of my site?

Hello, I would like to show a GitHub page as part of my site (using iframe for example). Currently I get GitHub refused to connect. The result can be seen at 2nd Level | Great Hugo Book

How can I show a GitHub page as part of my site?

Thank you!

Hi Raya! Thank you for your question and for posting for the first time :smile_cat: Have you tried something like this already?