Update app.py

app.py

@@ -171,7 +171,7 @@ demo = gr.Interface(ner,
                     examples=examples,
                     title="Disfluency Detection for Slot Filling and Intent Detection task",
                     description="This is an easy-to-use built in Gradio for desmontrating a NER System that identifies disfluency-entities in \
-                    Vietnamese utterances, then using the "fluency" version for Slot Filling and Intent Detection task",
+                    Vietnamese utterances, then using the 'fluency' version for Slot Filling and Intent Detection task",
                     theme=gr.themes.Soft())
 
 demo.launch()