Update SDK_tutorial.md

Yabin Li

2023-08-21 72980e4f672ddfcd7322baca988deca9e8634dcd

 egs/aishell/transformer/utils/prepare_checkpoint.py

@@ -16,3 +16,4 @@
    except BaseException:
        raise BaseException(f"Please download pretrain model from ModelScope firstly.")
    shutil.copy(os.path.join(checkpoint_dir, checkpoint_name), os.path.join(pretrained_model_path, "model.pb"))
    shutil.copy(os.path.join(checkpoint_dir, "config.yaml"), os.path.join(pretrained_model_path, "config.yaml"))