Add README.md

README.md

+# git-command
+
+## 简单的命令
+
+Command line instructions
+
+- Git global setup
+
+```
+git config --global user.name "yourName"
+git config --global user.email "yourEmail"
+```
+
+- Create a new repository
+
+```
+git clone git@115.159.76.241:git/git-command.git
+cd git-command
+touch README.md
+git add README.md
+git commit -m "add README"
+git push -u origin master
+```
+
+- Existing folder
+
+```
+cd existing_folder
+git init
+git remote add origin git@115.159.76.241:git/git-command.git
+git add .
+git commit -m "Initial commit"
+git push -u origin master
+```
+
+- Existing Git repository
+
+```
+cd existing_repo
+git remote rename origin old-origin
+git remote add origin git@115.159.76.241:git/git-command.git
+git push -u origin --all
+git push -u origin --tags
+```
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