change of the basic template to include App right from the start

src/components/app.jsx

@@ -0,0 +1,9 @@
+import React from "react";
+
+function App() {
+  return (
+    <h1>This is my react boilerplate</h1>
+  );
+}
+
+export default App;

src/index.jsx

@@ -2,17 +2,9 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 
 import '../assets/stylesheets/application.scss';
-
-const Hello = ({ name }) => {
-  return (
-    <div>
-      Hello,
-      {name}
-    </div>
-  );
-};
+import App from "./components/app";
 
 const root = document.getElementById('root');
 if (root) {
-  ReactDOM.render(<Hello name="World" />, root);
+  ReactDOM.render(<App />, root);
 }