Update next link to point to portfolio-refresh.html

Author: Rschipman

projects/rhowyen.html

@@ -75,7 +75,7 @@ <h2 class="text-xl font-semibold mb-2">Challenges & Solutions</h2>
   <span class="text-gray-500">← Previous</span>
 
   <a
-    href="portfolio.html"
+    href="portfolio-refresh.html"
     class="text-green-400 hover:underline"
   >
     Next →