Clone the repository (with submodules) :
$ git clone --recursive https://github.com/wellspring/dotfiles.git /usr/share/dotfiles
Create symlinks :
$ for file in /usr/share/dotfiles/*; do ln -sf $file ~/.$(basename "$file"); done
$ ln -s /usr/share/dotfiles ~/.dotfiles
$ rm ~/.README.md
Use the pull-submodules command from gitconfig :
(cd ~/.dotfiles && git pull-submodules)