Update portfolio link to new URL

Author: vimal-java-dev

index.html

@@ -277,7 +277,7 @@ <h3>Desktop Chat Application (Local Area Network)</h3>
   <section id="portfolio" class="container fade-in portfolio counter-container">
     <div class="portfolio-card">
       <h2>Portfolio</h2>
-      <a href="https://vimal-java-dev.github.io/" target="_blank" class="btn">Tap to read Overview</a>
+      <a href="https://vimal-java-dev.github.io/portfolio-vimal-java-dev/" target="_blank" class="btn">View Overview</a>
     </div>
   </section>
 
@@ -320,4 +320,4 @@ <h2>Contact Me</h2>
   <script src="/js/main.js"></script>
 </body>
 
-</html>
+</html>