Update README.md

README.md

@@ -42,7 +42,7 @@ Install auto-round from source first
 
 ```python
 from transformers import AutoModelForCausalLM, AutoTokenizer
-from auto_round.export import AutoHfQuantizer
+from auto_round.auto_quantizer import AutoHfQuantizer 
 quantized_model_dir = "Intel/Mistral-7B-v0.1-int4-inc-lmhead"
 model = AutoModelForCausalLM.from_pretrained(quantized_model_dir,
                                              device_map="auto",