Update app.py

app.py

@@ -203,7 +203,18 @@ local_video_content = get_video_content(local_video_path)
 
 # 创建Gradio界面
 with gr.Blocks() as demo:
-    gr.Markdown("## Video Matting")
+    gr.Markdown(
+        '''
+        This space displays how to perform Video Matting.
+        ## How to use this Space?
+        - Upload a video, preferably with a duration of less than 10 seconds.
+        - Upload a photo of the background of video.
+        - You will receive the result of the face swap after 5-10 minutes.
+        - Click the 'clear' button to clear all the files.
+        ## Examples
+        - You can get the test examples from our [Roop Dataset Repo.](https://huggingface.co/datasets/SJTU-TES/VideoMatting) 
+        '''
+    )
     with gr.Row():
         video_src = gr.File(label="Upload Source Video (.mp4)", type="binary", file_types=["mp4"])
         video_bgr = gr.File(label="Upload Background Image (.png)", type="binary", file_types=["png"])