Update README.md

Author: rab657

README.md

@@ -129,7 +129,7 @@ Visit the documentation to [learn more](https://docs.explainx.ai/)
 
 Please click on the image below to load the tutorial:
 
-[![here](https://github.com/explainX/explainx/blob/master/explain_video_img.png)](https://youtu.be/X3fk-r2G15k)  
+[![here](https://github.com/explainX/explainx/blob/master/explain_video_img.png)](https://youtu.be/CDMpOismME8)  
 
 (Note: Please manually set it to 720p or greater to have the text appear clearly)