Update app.py

app.py

@@ -12,7 +12,7 @@ def generate_video(original_video, watermark):
 
 # Use RGBA image mode to preserve transparency for png images.
 demo = gr.Interface(generate_video, [gr.Video(), gr.Image(type='filepath', image_mode='RGBA')], gr.Video(),
-                    examples=[[a, w1], [b, w2]], title="Watermarking Example", description="Watermarks can be visible or invisible; they can provide information directly or provide a link for more information.")
+                    examples=[[a, w1], [b, w2]], title="Watermarking Example", description="Watermarks can be **visible** or **invisible**; they can provide information directly or provide a link for more information.")
 
 if __name__ == "__main__":
     demo.launch()