Update public/index.html

public/index.html

@@ -4,7 +4,7 @@
   <meta charset="UTF-8">
   <meta name="viewport"
         content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
-  <title>  Demo</title>
+  <title>GeoVis AR Projekt</title>
 
   <!-- three.js -->
   <script src="https://unpkg.com/three@0.126.0/build/three.js"></script>