How to add an existing create-react-app to an existing solution in visual studio 2019?

I have a create-react-app, and I have as a backend a few .net projects in visual studio, and I want to connect my react app to be under the same solution in visual studio. I tried adding it to solution as: add existing web site, and by me it works fine. But when I add it to git you can't open it on another computer. Maybe something I'm doing wrong or is there another way to do it?