doc(README.md): remove heroku

Author: Aaron Schlesinger

README.md

@@ -2,9 +2,7 @@
 
 [![Build Status](https://travis-ci.org/deis/builder.svg?branch=master)](https://travis-ci.org/deis/builder) [![Go Report Card](http://goreportcard.com/badge/deis/builder)](http://goreportcard.com/report/deis/builder) [![Docker Repository on Quay](https://quay.io/repository/deisci/builder/status "Docker Repository on Quay")](https://quay.io/repository/deisci/builder)
 
-Deis (pronounced DAY-iss) is an open source PaaS that makes it easy to deploy and manage
-applications on your own servers. Deis builds on [Kubernetes](http://kubernetes.io/) to provide
-a lightweight, [Heroku-inspired](http://heroku.com) workflow.
+Deis (pronounced DAY-iss) is an open source PaaS that makes it easy to deploy and manage applications on your own servers. Deis builds on [Kubernetes](http://kubernetes.io/) to provide a lightweight, easy and secure way to deploy your code to production.
 
 ## Beta Status