Update copyright years

Author: aisha-w

_layouts/default.html

@@ -57,7 +57,7 @@ <h1><a href="{{ "/" | absolute_url }}">{{ site.title | default: site.github.repo
           <p>This project is maintained by <a href="{{ site.github.owner_url }}">{{ site.github.owner_name }}</a></p>
           {% endif %}
           <p><small>Hosted on GitHub Pages &mdash;<a href="https://github.com/orderedlist"> Original Theme</a></small></p>
-          <p><small>copyright ©️ <a href="{{site.github.owner_url}}">aisha washington</a> 2019-2020 </p>
+          <p><small>copyright ©️ <a href="{{site.github.owner_url}}">aisha washington</a> 2019-2025 </p>
         </footer>
       </div>
       <script src="{{ "/assets/js/scale.fix.js" | relative_url }}"></script>