I am confused. It says I can paste React components into any website, but what do I do with the generated script tags? how can do I paste this into github.com o

I am confused. It says I can paste React components into any website, but what do I do with the generated script tags? how can do I paste this into github.com or news.ycombinator.com? If this is a way to just generate a build for me to paste into my own website, then the messaging needs to be adjusted. However, I do like how simple it is to just get a quick React build together without having to deal with the tooling.