update build badge

update build badge from travis.com --> travis.org

Author: mjmiguel

README.md

@@ -2,7 +2,7 @@
 
 #
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/open-source-labs/Swell/blob/master/LICENSE.txt)
-[![Build Status](https://travis-ci.com/open-source-labs/Swell.svg?branch=master)](https://travis-ci.com/open-source-labs/Swell)
+[![Build Status](https://travis-ci.org/open-source-labs/Swell.svg?branch=master)](https://travis-ci.org/open-source-labs/Swell)
 ![GitHub package.json version](https://img.shields.io/github/package-json/v/open-source-labs/Swell?color=blue)
 [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/getswell/getswell/issues)
 [![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=Swell-%20For%20all%20your%20streaming%20API%20testing%20needs&url=https://www.getswell.io&hashtags=SSE,WebSocket,HTTP,API,developers)