refactor: formatting

src/index.html

@@ -86,8 +86,8 @@
         <div class="container output-element" id="resultsDiv">
         </div>
     </div>
-
-    <script>
+</div>
+<script>
 
     var labelNumRats = document.getElementById("labelNumRats");
 
@@ -152,7 +152,7 @@
     }
 
     update();
-    </script>
+</script>
 
 </body>
 </html>