Adding demo link

index.html

@@ -27,6 +27,15 @@
         <div class="hero-grid">
           <div class="hero-copy">
             <nav class="page-nav" aria-label="Page navigation">
+              <a
+                class="btn"
+                href="https://www.linkedin.com/posts/marcodomingo_nvidiagtc-edgeai-physicalai-activity-7426592008334397440-oQ67?utm_source=social_share_send&utm_medium=member_desktop_web&rcm=ACoAAB_g7q0BSVro1tLCKRRRIVo_DBFF19EyTcY"
+                target="_blank"
+                rel="noopener noreferrer"
+                aria-label="Demo (opens a new tab to LinkedIn)"
+              >
+                Demo <span class="btn-note">(opens new tab)</span>
+              </a>
               <a class="btn" href="#features">Features</a>
               <a class="btn" href="#webapp">Web App</a>
               <a class="btn ghost" href="#quickstart">Quick start</a>