Update indentation levels and messaging
Update indentation levels and messaging

Fix indentation levels

more helpful messages about supported versions

skilljar/heroku-buildpack-python,benmurden/heroku-buildpack-python-ember,benjaminfox/heroku-buildpack-python-geoip,heroku/heroku-buildpack-python,Scalingo/python-buildpack,heroku/heroku-buildpack-python,benmurden/heroku-buildpack-python-ember,AltSchool/heroku-buildpack-python,ad-m/heroku-buildpack-python,Scalingo/python-buildpack,benjaminfox/heroku-buildpack-python-geoip,AltSchool/heroku-buildpack-python,ad-m/heroku-buildpack-python