npm install -g hash-inject-clihash-inject -f ./index.html./index.html
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="/mn.css?hash="/>
</head>
<body>
<div id="root"></div>
<script src="/app.js?hash="></script>
</body>
</html><!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="/mn.css?hash=6d26ab51456043be"/>
</head>
<body>
<div id="root"></div>
<script src="/app.js?hash=560e6d26ab43b514"></script>
</body>
</html>