Hello HTML
This example shows a minimal web page that renders the text "Hello JSX" using React and ReactDOM. The code defines a simple `App` component that returns an HTML heading, then mounts it into a `div` element with the ID `root` using `ReactDOM.render`. The page loads React and ReactDOM from CDN via `unpkg.com` and includes a `bundle.js` script for the compiled JavaScript. No data visualization is present; instead, it demonstrates the basic setup required to run a React application with JSX syntax.