added travis build status image

SeunMatt · SeunMatt · commit d518166f0dbe · 2017-06-29T07:02:44.000+01:00
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 fstackapi_php
 =============
+[![Build Status](https://travis-ci.org/SeunMatt/fstackapi_php.svg?branch=master)](https://travis-ci.org/SeunMatt/fstackapi_php)
+
 This is a convenient PHP wrapper for Formstack's REST API v2. 
 Compatible with Laravel.
 
