add examples

app.py

@@ -295,7 +295,7 @@ if __name__ == "__main__":
                         obj3d = gr.Video(label="3D Model",height=290)
                         # obj3d = gr.Model3D(label="3D Model",height=290)
                 video4d =  gr.Video(label="4D Render",height=290)
-                obj4d = Model4DGS(label="4D Model", height=500, fps=21)
+                obj4d = Model4DGS(label="4D Model", height=500, fps=28)
 
             
             img_run_btn.click(check_img_input, inputs=[image_block], queue=False).success(optimize_stage_0,