Clone into home directory and run:
ln -s dotfiles/vimrc .vimrc
ln -s dotfiles/.vim/ .vim
ln -s dotfiles/gitignore_global .gitignore_global
ln -s dotfiles/gitconfig .gitconfig
bash:
ln -s dotfiles/bash_login .bash_login
zsh:
ln -s ~/dotfiles/rachel.zsh-theme .oh-my-zsh/custom/themes/rachel.zsh-theme
zsh prompt references etc: