Support github.io website

Is your feature request related to a problem? Please describe.

We are using Github pages to generate the docs for our open-source projects, and the default output is a website which is hosted under "github.io", but in China, this domain has been blocked. So people in China can't access the website, unfortunately

Describe the solution you would like.

I want to have a solution to leverage jsdelivr service for a specific github.io website, thanks

Describe alternatives you have considered.

No response

Requisites

[X] I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
[X] I understand that not filling out this template correctly will lead to the issue being closed.

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