docs: update

app.py

@@ -941,12 +941,6 @@ def run_graio_demo(args):
                 result_gallery = gr.Video(
                     label='Generated Video', interactive=False, height=600, )
                 
-                gr.Markdown("""
-                ### Example Cases
-                
-                *Note: Generation time (tested on NVIDIA H100 GPU with 40 denoising steps) may vary depending on GPU specifications and system load.*
-                """)
-                
                 # 创建一个函数来处理 examples 选择
                 def handle_example_select(image, prompt, person_num, audio_mode, audio1, audio2, audio3):
                     # 三个音频输入框始终可见，只返回值，不改变可见性