package.json
{
...
"homepage": "https://domain.github.io/directory-name"
}
Router
<Router basename={'/directory-name'}>
<Route path='/' component={Home} />
{/* … */}
</Router>
이렇게 두 가지만 하면 됨.
참고:
https://medium.com/@svinkle/how-to-deploy-a-react-app-to-a-subdirectory-f694d46427c1
==> "step 3 and step 4 not needed" 라는 댓글이 있음