What two things do you need to pull in on the main index.html file? ReactJS

React and JSX Transformer
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/react/0.13.1/react.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/react/0.13.1/JSXTransformer.js"></script>