message: doc: Remove travis badge, add patreon badge
diff: # Buttplug Protocol and Architecture Documentation
  -[![Build Status](https://img.shields.io/travis/metafetish/buttplug.svg)](https://travis-ci.org/metafetish/buttplug)
  +[![Patreon donate button](https://img.shields.io/badge/patreon-donate-yellow.svg)](https://www.patreon.com/qdot)
  This repo houses architecture documentation for the Buttplug Sex Toy
  Control Server Protocol.
  