Created by: CompuIves
CodeSandbox now has a CLI that will allow you to deploy your create-react-app projects to CodeSandbox. I added this as documentation in the user-guide. I thought that the deployment section comes most close to what I'm trying to document, but I'm open to suggestions if you know a better place!
Related issue: https://github.com/facebookincubator/create-react-app/issues/169.