Update app.py

app.py

@@ -64,7 +64,7 @@ m = AutoModelForCausalLM.from_pretrained(
 embedding_func=m.get_input_embeddings()
 embedding_func.weight.requires_grad=False
 
-tok = AutoTokenizer.from_pretrained("ibm-granite/granite-3.0-2b-instruct", 
+tok = AutoTokenizer.from_pretrained("google/gemma-2b-it", 
                                     trust_remote_code=True,token=HF_TOKEN
                                    )
 tok.padding_side = "left"