added travis ci badge to docs

Author: jakewmeyer

README.md

@@ -6,7 +6,7 @@
 ### A simple Bash utility for wan, lan, router, dns, mac, and ip geodata, with clean output for piping
 
 [![GitHub release](https://img.shields.io/github/release/jakewmeyer/Geo.svg)]()
-[![Language](https://img.shields.io/badge/language-Bash-brightgreen.svg)]()
+[![Build Status](https://travis-ci.org/jakewmeyer/Geo.svg?branch=master)](https://travis-ci.org/jakewmeyer/Geo)
 [![Platform](https://img.shields.io/badge/platform-MacOS%20%2B%20Linux-blue.svg)]()
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg)]()