You can add jQuery using CDN or through downloading it on local machine. For Local Installation, download jQuery library on your local machine and include it in your HTML code. The following are the steps:
You can try to run the following code to learn how to link jQuery from local machine:
<html>
<head>
<title>jQuery Example</title>
<script src = "/jquery/jquery-3.2.1.min.js"></script>
<script>
$(document).ready(function(){
document.write("Hello, World!");
});
</script>
</head>
<body>
<h1>Hello</h1>
</body>
</html>
