Update app.py

app.py

@@ -177,5 +177,6 @@ with gr.Blocks(title="House Database Query") as demo:
         # fn=execute_sql_query
     )
 # When calling/running directly,  script gets executed
+# why -> this mechanishm used to prevent unintended  execution of code
 if __name__ == "__main__":
     demo.launch(share=True)