Update 'Backers' section in README.rst
Update 'Backers' section in README.rst

hackebrot/cookiecutter,luzfcb/cookiecutter,dajose/cookiecutter,luzfcb/cookiecutter,pjbull/cookiecutter,pjbull/cookiecutter,michaeljoseph/cookiecutter,audreyr/cookiecutter,dajose/cookiecutter,michaeljoseph/cookiecutter,audreyr/cookiecutter,hackebrot/cookiecutter