README.md

**Usage**

    # 环境配置
    git clone https://github.com/hiyouga/ChatGLM-Efficient-Tuning.git
    conda create -n chatglm_etuning python=3.10
    conda activate chatglm_etuning
    cd ChatGLM-Efficient-Tuning
    pip install -r requirements.txt

    # 终端输入
    CUDA_VISIBLE_DEVICES=0 python src/infer.py \
    --checkpoint_dir path_to_checkpoint # repo files