Perfectly solve the problem of slow download speed of git clone

Solution: Use domestic mirror website

For example, the project originally cloned Github:

git clone https://github.com/samples

Now only need to replace https://github.com with a domestic mirror website

There are currently two good URLs in China that can be replaced

1. git clone https://github.com.cnpmjs.org/samples

// 或者

2. git clone https://git.sdut.me/samples