README currently says "You can run the container on its own", but I think it needs 'content' running (default port 5000) or else there's an immediate can't find React error.
After that though, there's a missing 'http://localhost:5000/restaurants.json' resource (same port) and now I'm confused to whether I'm correct with the above suggested advise.
Maybe shouldn't be looking at the chrome tab that 'yarn start' itself opens at all.