Add basic create-react-app

src/App.js

@@ -0,0 +1,11 @@
+import React from 'react';
+
+function App() {
+	return (
+		<div>
+			<p>It works</p>
+		</div>
+	);
+}
+
+export default App;

src/index.js

@@ -0,0 +1,10 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import App from './App';
+
+ReactDOM.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+  document.getElementById('root')
+);