Add badges

README.md

@@ -6,7 +6,7 @@ This is unofficial documentation of the Tesla JSON API used by the iOS and Andro
 The API provides functionality to monitor and control the Model S (and future Tesla vehicles) remotely.
 The project provides both a documention of the API and a Ruby library to for accessing it.
 
-## Ruby Library
+## Ruby Gem [![Gem Version](https://img.shields.io/gem/v/tesla_api.svg)](http://rubygems.org/gems/tesla_api) [![Build Status](https://img.shields.io/travis/timdorr/model-s-api/master.svg)](https://travis-ci.org/timdorr/model-s-api)
 
 This gem provides a basic wrapper around the API to easily query and command the car remotely. 
 It also provides access to the streaming API and a means to process data coming from it.