Update app.py

app.py

@@ -217,8 +217,22 @@ examples = [os.path.join(example_folder, f) for f in os.listdir(example_folder)
 
 with gr.Blocks() as demo:
     with gr.Row():
-
+        
         with gr.Column():
+            gr.Markdown("""
+            # Welcome to [VFusion3D](https://junlinhan.github.io/projects/vfusion3d.html) Demo
+
+            This demo allows you to upload an image and generate a 3D model or rendered videos from it. 
+
+            ## How to Use:
+            1. Click on "Click to Upload" to upload an image, or choose one example image.
+            2: Choose between "Generate and Download Mesh" or "Generate and Download Video", then click it.
+            3. Wait for the model to process; meshes should take approximately 10 seconds, and videos will take approximately 30 seconds.
+            4. Download the generated mesh or video.
+
+            This demo does not aim to provide optimal results but rather to provide a quick look. See our [GitHub](https://github.com/facebookresearch/vfusion3d) for more. 
+
+            """)
             img_input = gr.Image(type="pil", label="Input Image")
             examples_component = gr.Examples(examples=examples, inputs=img_input, outputs=None, examples_per_page=3)
             generate_mesh_button = gr.Button("Generate and Download Mesh")