[git add new Repo]

git init

git add .

git commit -m "...."

git remote add origin https://..../new.git

git push origin master

[git add ALL data]

git add .

git commit -m "...."

git push origin master

[Clone other's Repo] git clone https://..../repo.git repo

[Creat git submodule]

git submodule init

git submodule update

[Install plug-in as a submodule]

git submodule add https://...../plug-in.git bundle/plug-in

git add .

git commit -m "Install plug-in.vim bundle as a submodule."

git push origin master

[submodule update]

git submodule sync

git submodule update