04 Source needs to be updated to match video

[cforsyth68]

https://github.com/pkellner/pluralsight-course-server-side-rendered-react-nextjs/blob/9519d0669fb59ba4ee77d2428596d40f9c6043bb/m3-Learning-the-Fundamentals/04-Creating-a-React-Functional-Component/index.js#L5-L7

To match video, 04 should show a functional component, as follows:

const Hello = function() {
    return React.createElement("h1",{},"Hello From Pluralsight and React");
};

ReactDOM.render(
    React.createElement(Hello,{},null),
    document.getElementById('app')
);

[pkellner]

Thanks @cforsyth68