方法一：通过命令行修改远程地址

 > cd json
 >  git remote set-url origin https://gitee.com/jouypub/json.git

方法二：先删除原有仓库地址，然后添加新地址

 > cd json
 > git remote rm origin
 > git remote add origin https://gitee.com/jouypub/json.git

方法三：修改配置文件

> cd json/.git
> vim config

[core]
  repositoryformatversion = 0
  filemode = true
  logallrefupdates = true
  precomposeunicode = true

[remote "origin"]
  # 修改成新的仓库地址
  url = https://gitee.com/jouypub/json.git
  fetch = +refs/heads/*:refs/remotes/origin/*

[branch "master"]
  remote = origin
  merge = refs/heads/master