discourse/discourse — pull request #868 by jjb (2013-05-21 00:48:32+00:00)
Title: make Redis config easier on Heroku

Here's I've modified the Heroku docs so that the Redis provider doesn't need to be hardcoded into redis.yml, it can instead be set via heroku config.

I also tweaked the name of the dummy ENV var in redis.yml.sample to accommodate this convention.

And while I was in there I fixed the language for one of the code blocks in the heroku doc.