Add docstrings to document generate_file's precondition and params. Fix other docstrings in generate too.
Add docstrings to document generate_file's precondition and params. Fix other docstrings in generate too.

Springerle/cookiecutter,christabor/cookiecutter,drgarcia1986/cookiecutter,luzfcb/cookiecutter,agconti/cookiecutter,willingc/cookiecutter,kkujawinski/cookiecutter,janusnic/cookiecutter,vintasoftware/cookiecutter,cguardia/cookiecutter,venumech/cookiecutter,christabor/cookiecutter,nhomar/cookiecutter,utek/cookiecutter,Vauxoo/cookiecutter,luzfcb/cookiecutter,stevepiercy/cookiecutter,terryjbates/cookiecutter,dajose/cookiecutter,ionelmc/cookiecutter,ramiroluz/cookiecutter,agconti/cookiecutter,tylerdave/cookiecutter,kkujawinski/cookiecutter,sp1rs/cookiecutter,utek/cookiecutter,michaeljoseph/cookiecutter,cguardia/cookiecutter,ramiroluz/cookiecutter,tylerdave/cookiecutter,dajose/cookiecutter,lucius-feng/cookiecutter,sp1rs/cookiecutter,foodszhang/cookiecutter,willingc/cookiecutter,jhermann/cookiecutter,letolab/cookiecutter,alex/cookiecutter,terryjbates/cookiecutter,vintasoftware/cookiecutter,Vauxoo/cookiecutter,vincentbernat/cookiecutter,takeflight/cookiecutter,nhomar/cookiecutter,audreyr/cookiecutter,letolab/cookiecutter,atlassian/cookiecutter,hackebrot/cookiecutter,moi65/cookiecutter,stevepiercy/cookiecutter,takeflight/cookiecutter,jhermann/cookiecutter,lgp171188/cookiecutter,vincentbernat/cookiecutter,janusnic/cookiecutter,michaeljoseph/cookiecutter,cichm/cookiecutter,ionelmc/cookiecutter,benthomasson/cookiecutter,cichm/cookiecutter,Springerle/cookiecutter,0k/cookiecutter,pjbull/cookiecutter,drgarcia1986/cookiecutter,lgp171188/cookiecutter,hackebrot/cookiecutter,atlassian/cookiecutter,0k/cookiecutter,audreyr/cookiecutter,venumech/cookiecutter,foodszhang/cookiecutter,pjbull/cookiecutter,alex/cookiecutter,benthomasson/cookiecutter,lucius-feng/cookiecutter,moi65/cookiecutter