bug fix

app.py

@@ -67,7 +67,7 @@ def topk(word,model):
 
 interface = gr.Interface(fn=topk, 
                         inputs=[gr.Textbox(label="Word"), gr.Dropdown(available_models)],
-                        outputs=gr.outputs.Textbox()
+                        outputs=gr.outputs.Textbox(),
                         title = title,
                         description = description,
                         article = article)