Create html boilerplate.
$ npx starthtml create:htmlResult created html as below:
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Title</title>
</head>
<body>
<div id="root"></div>
<script src="./index.js"></script>
</body>
</html>