Clarify the purpose of making the buildpack available.
Clarify the purpose of making the buildpack available.

jkutner/heroku-buildpack-lein,nvbn/heroku-buildpack-clojure,cedricpineau/heroku-buildpack-clojure-phantomjs,heroku/heroku-buildpack-clojure,mstine/heroku-buildpack-clojure,heroku/heroku-buildpack-clojure,cloudControl/buildpack-clojure