init commit,

99_references/blank-ionic/src/main.tsx

@@ -0,0 +1,11 @@
+import React from 'react';
+import { createRoot } from 'react-dom/client';
+import App from './App';
+
+const container = document.getElementById('root');
+const root = createRoot(container!);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);