Add inspiration attribution to footer

Co-authored-by: brunoborges <129743+brunoborges@users.noreply.github.com>

Author: Copilot

templates/index.html

@@ -257,6 +257,7 @@ <h2 class="section-title">All comparisons</h2>
   <footer>
     <p><a href="/">java.evolved</a> — Java has evolved. Your code can too.</p>
     <p>Made with ❤️ by <a href="https://github.com/brunoborges" target="_blank" rel="noopener">Bruno Borges</a> and <a href="https://github.com/features/copilot" target="_blank" rel="noopener">GitHub Copilot</a></p>
+    <p>Inspired by <a href="https://modern-css.com" target="_blank" rel="noopener">modern-css.com</a></p>
     <p><a href="https://github.com/javaevolved/javaevolved.github.io" target="_blank" rel="noopener">View on GitHub</a></p>
   </footer>
 

templates/slug-template.html

@@ -192,6 +192,7 @@ <h1>{{title}}</h1>
   <footer>
     <p><a href="/">java.evolved</a> — Java has evolved. Your code can too.</p>
     <p>Made with ❤️ by <a href="https://github.com/brunoborges" target="_blank" rel="noopener">Bruno Borges</a> and <a href="https://github.com/features/copilot" target="_blank" rel="noopener">GitHub Copilot</a></p>
+    <p>Inspired by <a href="https://modern-css.com" target="_blank" rel="noopener">modern-css.com</a></p>
     <p><a href="https://github.com/javaevolved/javaevolved.github.io" target="_blank" rel="noopener">View on GitHub</a></p>
   </footer>