xxx..github.io 报404错
跟老师的一样写法：
<h1>this is zhangyuhong Official network <small>2018-7-2创建</small></h1> -----结果报404
然后加了：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>xxx.github.io</title>
<link rel="stylesheet" href="">
</head>
<body>
<h1>this is zhangyuhong Official network <small>2018-7-2创建</small></h1>
</body>
</html> -------还是报404
