Ref: https://stackoverflow.com/questions/17570446/how-to-add-gitbitbucket-to-existing-source-code-folder
1, cd /path/to/your/repo
2, git init
3, git add --all
4, git remote add origin https://*******@bitbucket.org/******/**project**.git
5, git commit -m "my first commit"
6, git push -u origin master