Dockerfile 构建替换国内源

修改dockerfile 用国内源：

替换ubuntu源：

RUN sed -i 's/http:\/\/archive.ubuntu.com/http:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu/g' /etc/apt/sources.list

替换pip源

RUN pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple