fix typo

README.md

@@ -71,5 +71,5 @@ for n, m in model.named_modules():
             layer_config[n] = {"bits": 8}
 
 autoround = AutoRoundMLLM(model, tokenizer, processor=processor, iters=200, group_size=128,layer_config=layer_config)
-autoround.quantize_and_save("./Qwen2.5-VL-7B-Instruct-autoround)
+autoround.quantize_and_save("./Qwen2.5-VL-7B-Instruct-autoround")
 ~~~