Update app.py

app.py

@@ -41,7 +41,7 @@ def forecast():
 
 date_today = datetime.now().strftime("%Y-%m-%d")
 
-output_label = date_today + " 's air quality is '"
+output_label = date_today + " 's air quality is "
 
 demo = gr.Interface(
     fn=forecast,