index.html
<!DOCTYPE html>
<html>
<head>
<title>Koto</title>
<script type="text/javascript" src="node_modules/d3/build/d3.js"></script>
<script type="text/javascript" src="node_modules/koto-theme/dist/theme.js"></script>
<script type="text/javascript" src="/dist/koto.js"></script>
</head>
<body>
<h1>Hello, Koto!</h1>
<div id="test"></div>
<script>
console.log('Koto', Koto);
console.log('koto', new Koto(d3.select('#test')));
</script>
</body>
</html>