update local demo

app.py

@@ -366,17 +366,18 @@ with demo:
                         interactive=False,
                         # camera_position=[0.5, 0.5, 1],
                     )
-                    feat_image = gr.Image(
-                        label="Feature Visualization",
-                        type="filepath"
-                    )
-                    gr.HTML(
+                    gr.Markdown(
                         """
                         <div class="model-description">
                            &nbsp;&nbsp;Use the left mouse button to rotate, the scroll wheel to zoom, and the right mouse button to move.
                         </div>
                         """
                     )    
+                    feat_image = gr.Image(
+                        label="Feature Visualization",
+                        type="filepath"
+                    )
+
 
     with gr.Row(variant='panel'):
         with gr.Tab("Step 2: Readout 3DGS from features & Jointly optimize pose"):
@@ -389,7 +390,7 @@ with demo:
                         interactive=False,
                         # camera_position=[0.5, 0.5, 1],
                     )
-                    gr.HTML(
+                    gr.Markdown(
                         """
                         <div class="model-description">
                            &nbsp;&nbsp;Failed to visualize or got a GPU runtime error? <a href="https://github.com/fanegg/Feat2GS" target="_blank">Run the demo on your local computer!</a>