I created a new project using `ng new hello-world`.
After running the project using `ng serve` I am getting below source code from browser.
<title>HelloWorld</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">
<link rel="stylesheet" href="styles.css"></head>
<script src="runtime.js" defer></script><script src="polyfills.js" defer></script><script src="vendor.js" defer></script><script src="main.js" defer></script></body>
How `<link rel="stylesheet" href="styles.css">` added here ?
What should I do if I need to add another Style sheet like this one ?