How to add a finished project to GitHub?

Question

GitHub

Hello! There is a ready project for portfolio. I want to add it to GitHub and deploy it to GitHub-pages. Actually a question. How to add content to my site. In particular, pictures, SVG icons, and the like?

I can just upload files with code / make edits and push them. I have more or less an idea of ​​how everything works. But I don’t understand how to fill in the rest of the content of my site.

Answer 1

via cmd
P.S
GitHub desktop must be installed