Update app.py

app.py

@@ -123,6 +123,7 @@ iface = gr.Interface(
         "enter a regex pattern (for example, `_(\\d+)`), and provide the start and end frame numbers. "
         "The tool will group frames by frame index (so that frame 1 from all cameras is together) "
         "and return a downloadable ZIP file with the sorted frames."
+        "Mention the Readme for further information on Regex pattern and Start and End Frames format."
     )
 )