github最快速入门（最关键的语句）

1. …or create a new repository on the command line
   echo # test1 >> README.md
   git init
   git add README.md
   git commit -m “first commit”
   git remote add origin https://github.com/keyeechen/test1.git
   git push -u origin master

2. …or push an existing repository from the command line
   git remote add origin https://github.com/keyeechen/test1.git
   git push -u origin master