Add demo video section to showcase large file transfers between devices

Author: huynguyennovem

index.html

@@ -162,6 +162,25 @@ <h3>Cross-platform</h3>
             </div>
         </section>
 
+        <section class="video-section">
+            <div class="container">
+                <div class="feature-intro">
+                    <h2>Large file transfers in action</h2>
+                    <p>See NetShare move large files between an Android phone and a macOS desktop over the local
+                        network, with no cloud upload in between.</p>
+                </div>
+                <div class="demo-video-shell">
+                    <div class="demo-video-frame">
+                        <iframe src="https://www.youtube-nocookie.com/embed/yhZNjhfu0R4"
+                            title="NetShare 2.4.0: fast large files transfer between Android phone and macOS desktop in local network"
+                            loading="lazy" referrerpolicy="strict-origin-when-cross-origin"
+                            allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
+                            allowfullscreen></iframe>
+                    </div>
+                </div>
+            </div>
+        </section>
+
         <!-- Use Cases -->
         <section id="use-cases">
             <div class="container">