Adding Web Custom fonts in SAC from GitHub URL

Hello,

We have a scenario to use Web Custom Fonts in SAC. We trying to get the Font Family URL from GitHub using this example.

https://github.com/Michadelic/CustomFontsSAC

We have create same in GitHub. But we are facing problem while accessing the URL, we are getting following error,

My Files in GitHub,

I don't know some where i have missed it. Please help me on this. Kindly let me know, If there any way to import the CSS files in SAC.

Regards,

Vidhya