You can clone the repository wherever you want. (I like to keep it in ~/Projects/dotfiles, with ~/dotfiles as a symlink.) The bootstrapper script will pull in the latest version and copy the files to your home folder.
git clone git@github.com:colinperuno/dotfiles.git && cd dotfiles && source bootstrap.shTo update, cd into your local dotfiles repository and then:
source bootstrap.shAlternatively, to update while avoiding the confirmation prompt:
set -- -f; source bootstrap.shTo update later on, just run that command again.
When setting up a new Mac, you may want to set some sensible OS X defaults:
./.osxWhen setting up a new Mac, you may want to install some common Homebrew formulae (after installing Homebrew, of course):
./brew.sh