add note about canceling project generation when hook script fails
add note about canceling project generation when hook script fails

michaeljoseph/cookiecutter,pjbull/cookiecutter,luzfcb/cookiecutter,hackebrot/cookiecutter,willingc/cookiecutter,pjbull/cookiecutter,Springerle/cookiecutter,Springerle/cookiecutter,stevepiercy/cookiecutter,audreyr/cookiecutter,hackebrot/cookiecutter,terryjbates/cookiecutter,willingc/cookiecutter,luzfcb/cookiecutter,audreyr/cookiecutter,dajose/cookiecutter,stevepiercy/cookiecutter,michaeljoseph/cookiecutter,terryjbates/cookiecutter,dajose/cookiecutter