Update README_zh.md (#2436)

修正推理参数笔误

Author: tiandiweizun

examples/industrial_data_pretraining/paraformer/README_zh.md

@@ -365,7 +365,7 @@ tensorboard --logdir /xxxx/FunASR/examples/industrial_data_pretraining/paraforme
 
 从shell推理
 ```shell
-python -m funasr.bin.inference ++model="./model_dir" ++input=="${input}" ++output_dir="${output_dir}"
+python -m funasr.bin.inference ++model="./model_dir" ++input="${input}" ++output_dir="${output_dir}"
 ```
 从python推理
 
@@ -433,4 +433,4 @@ result = model(wav_path)
 print(result)
 ```
 
-更多例子请参考 [样例](https://github.com/alibaba-damo-academy/FunASR/tree/main/runtime/python/onnxruntime)
+更多例子请参考 [样例](https://github.com/alibaba-damo-academy/FunASR/tree/main/runtime/python/onnxruntime)