docs: add demo video and update README

README.md

@@ -46,10 +46,20 @@ tags:
 
 ### 🛠️ Technical Walkthrough
 <div align="center">
-<iframe width="560" height="315" src="https://www.youtube.com/embed/2P0q4jzUuvE?si=n9ijWvtaJXjdQFWk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+  <a href="https://www.youtube.com/watch?v=2P0q4jzUuvE" target="_blank">
+    <img src="https://img.youtube.com/vi/2P0q4jzUuvE/maxresdefault.jpg" 
+         alt="Watch LifeFlow AI Trailer" 
+         width="85%" 
+         style="border-radius: 10px; box-shadow: 0px 4px 12px rgba(0,0,0,0.3);" />
+  </a>
+  
+  <br>
+  <p style="color: #888; font-size: 0.9em; margin-top: 10px; margin-bottom: 0px;">
+    <i>Click the image or the button below to watch the full demo</i>
+  </p>
 
-<a href="https://www.youtube.com/watch?v=2P0q4jzUuvE" style="font-size: 1.1em; font-weight: bold;">
-    👉 Watch the Full Technical Walkthrough on YouTube
+  <a href="https://www.youtube.com/watch?v=2P0q4jzUuvE">
+    <img src="https://img.shields.io/badge/▶_Watch_on_YouTube-FF0000?style=for-the-badge&logo=youtube&logoColor=white" alt="Watch on YouTube">
   </a>
 </div>
 
@@ -58,9 +68,9 @@ tags:
 <br>
 👉 [**Watch Product Trailer**](https://youtu.be/VWtx70UgI5A?si=RryKCfptJGAHm_DY)
 
-- **Social Media Post:** [🔗 View on LinkedIn]() [Coming Soon]
-
-- **Submission Date:** November 2025
+### 📅 Submission Details
+* **Submission Date:** November 2025
+* **Social Media Post:** [🔗 View on LinkedIn]() *[Coming Soon]*
 
 
 ## 📖 Overview