Newbie question: Github is not defined #382

<head>
    <meta charset='utf-8'>
    <meta http-equiv="X-UA-Compatible" content="chrome=1">
    <link rel="stylesheet" type="text/css" media="screen" href="stylesheets/stylesheet.css">
    <script src="https://unpkg.com/github-api/dist/GitHub.bundle.min.js"></script>
    <title>Database Rider</title>
</head>


<script type="text/javascript">
    var github = new Github({ //<---------- error is here
        token: 'my gh user token'
    });

</script>