Small template changes

.netlify/www/index.html

@@ -3,11 +3,11 @@
     <title>OHIF Viewer: Deploy Preview</title>
   </head>
   <body>
-    <h1>Hello World</h1>
+    <h1>Index of Previews</h1>
 
     <ul>
       <li>
-        <a href="/pwa">PWA</a>
+        <a href="/pwa">Progressive Web App</a>
       </li>
     </ul>
   </body>