index.html

<!doctype html>
<html>
    <head>
        <base href="/" />
        <title>ng2do</title>

        <link href='http://fonts.googleapis.com/css?family=Roboto' rel='stylesheet' type='text/css' />

        <link href="app/app.css" rel="stylesheet" type="text/css" />

        <script src="node_modules/systemjs/dist/system.js"></script>
        <script>System.config({defaultJSExtensions: true});</script>
        <script src="node_modules/rxjs/bundles/Rx.js"></script>
        <script src="node_modules/angular2/bundles/angular2-polyfills.js" ></script>
        <script src="node_modules/angular2/bundles/angular2.js" ></script>
    </head>
    <body>

        <todo></todo>

        <script>System.import('index.js');</script>

    </body>
</html>