Usage:
<html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<script type="text/javascript" src="build/dot-network.js"></script>
<script type="text/javascript">
network.run();
</script>
</body>
</html>