fix typo

app.py

@@ -186,7 +186,7 @@ def evaluate(
                 )
             except Exception as e:
                 print(e)
-        return f"please reduce the input length. Currently, {len(inputs['input_ids'][0])} token are used.", gr.update(interactive=True), gr.update(interactive=True)
+        return f"please reduce the input length. Currently, {len(inputs['input_ids'][0])} tokens are used.", gr.update(interactive=True), gr.update(interactive=True)
     input_ids = inputs["input_ids"].to(device)
     generation_config = GenerationConfig(
         temperature=temperature,