Kali Linux update sources

```

#中科大

　　deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib deb-src

　　http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib

　　#阿里云

　　deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib deb-src

　　http://mirrors.aliyun.com/kali kali-rolling main non-free contrib

　　#清华大学

　　deb http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free deb-src

　　https://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free

　　#浙大

　　deb http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free deb-src

　　http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free

　　#东软大学

　　deb http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib deb-src

　　http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib

　　#官方源

　　deb http://http.kali.org/kali kali-rolling main non-free contrib deb-src

　　http://http.kali.org/kali kali-rolling main non-free contrib

```