docs(README.md): update Deis Workflow reference

Author: Vaughn Dice

README.md

@@ -1,7 +1,5 @@
 # Deis NSQ
-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) Workflow is an open source Platform as a Service (PaaS) that adds a developer-friendly layer to any [Kubernetes](http://kubernetes.io) cluster, making it easy to deploy and manage applications on your own servers.
 
 ![Deis Graphic](https://s3-us-west-2.amazonaws.com/get-deis/deis-graphic-small.png)