Update index.html

public/index.html

@@ -46,6 +46,6 @@
     <p>Click on one of the buttons below to go to Augmented Reality:</p>
     <button onclick="location.href='1-Cube.html'">Visualize Cube</button>
     <button onclick="location.href='2-Hit.html'">Place a Road Roller</button>
-    <footer>&copy; 2023 HfT Stuttgart. </a>.</footer>
+    <footer>&copy; 2023 HfT Stuttgart. </a></footer>
   </body>
 </html>