npm deps updated to last version (rollup v3)

Author: Albert González

index.html

@@ -469,10 +469,9 @@ <h4 id="reactHook">React</h4>
         <a href="https://github.com/albert-gonzalez/easytimer-react-hook">EasyTimer React Hook</a>
       </p>
 
-      <hr>
-
-      <footer>
-        <p>Created by Albert González. Thank you for visiting me! :-)</p>
+      <footer class="mt-5 text-center">
+          <hr>
+          <p>Created by <strong>Albert González</strong>. Thank you for visiting me! :-)</p>
       </footer>
     </div> <!-- /container -->