Load product marketing stylesheet on landing page

Author: masarray

docs/index.html

@@ -17,6 +17,7 @@
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,300,0,0&display=swap" rel="stylesheet" />
   <link rel="manifest" href="site.webmanifest" />
   <link rel="stylesheet" href="styles.css" />
+  <link rel="stylesheet" href="product-marketing.css" />
   <script src="app.js" defer></script>
 
   <meta property="og:type" content="website" />