Update app.py

app.py

@@ -63,7 +63,7 @@ with gr.Blocks(theme=gr.themes.Base()) as demo:
         """
         <div style= margin-bottom: 20px;">
             <img src="https://raw.githubusercontent.com/pixeltable/pixeltable/main/docs/source/data/pixeltable-logo-large.png" alt="Pixeltable" style="max-width: 150px;" />
-            <h2>Video Frame Search with Pixeltable</h2>
+            <h2>Text and Image similarity search on video frames with embedding indexes</h2>
         </div>
         """
     )