I have been trying to submit my responsive design project using codepen however, I have assets from external resources and I have created some on my own like edited images. I can’t link all my resources to my project and therefore wanted to try using the alternative CDN link. I am just not sure how to go about it though. Can anyone please give me specific instruction on how I can go about using the CDN. I might as well also note that I have hosted some of these project on github pages if that can be relevant.