Update README.md

add YouTube video

README.md

@@ -39,19 +39,7 @@ This model card focuses on the LTX-2 model, codebase available [here](https://gi
 
 LTX-2 is a DiT-based audio-video foundation model designed to generate synchronized video and audio within a single model. It brings together the core building blocks of modern video generation, with open weights and a focus on practical, local execution. 
 
-<div class="card-video">
-    <video
-        src="./ltx-2-running-local.mp4"
-        width="854"
-        height="480"
-        autoPlay
-        loop
-        playsInline
-        muted
-        controls
-    >
-    </video>
-</div>
+[![LTX-2 Open Source](https://img.youtube.com/vi/8fWAJXZJbRA/maxresdefault.jpg)](https://www.youtube.com/watch?v=8fWAJXZJbRA)
 
 # Model Checkpoints