Update app.py

app.py

@@ -27,7 +27,7 @@ def inference(video):
   return 'com.mp4',"pha.mp4","fgr.mp4"
   
 title = "Robust Video Matting"
-description = "Gradio demo for Robust Video Matting. To use it, simply upload your video, currently only mp4 and ogg formats are supported. Read more at the links below."
+description = "Gradio demo for Robust Video Matting. To use it, simply upload your video, currently only mp4 and ogg formats are supported. Video should be at least 5 seconds long. Read more at the links below."
 
 article = "<p style='text-align: center'><a href='https://arxiv.org/abs/2108.11515'>Robust High-Resolution Video Matting with Temporal Guidance</a> | <a href='https://github.com/PeterL1n/RobustVideoMatting'>Github Repo</a></p>"