Update app.py

app.py

@@ -132,5 +132,5 @@ async def main(message: cl.Message):
             error_msg = f"An error occurred: {str(e)}\n{traceback.format_exc()}"
             await msg.update(content=error_msg)
 
-if __name__ '__main__':
+if __name__ == '__main__':
     cl.start()