git仓库建好后，如果仓库有md文件，需要先pull一次

1、报错信息如下
The most similar command is
credential-store
To https://gitee.com/martin-sun/web-ui-test-excel-driver.git
! [rejected] master -> master (fetch first)
error: failed to push some refs to 'https://gitee.com/martin-sun/web-ui-test-excel-driver.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

2、执行pull
git pull --rebase origin master

3、推送本地文件
git push -u origin master