nandub/hubot-irc — comment on commit 8bc98438a8efa6fd2f34531832c923373a0dc4b7
File: README.md line 17
By tombell:

It's needed because in the Twilio adapter I spin up a HTTP server to listen for incoming HTTP requests from Twilio. So Heroku requires the process type in the `Procfile` to be `web` not `app` :)