Update readme.md

harryosmar · web-flow · commit 2bf84450a795 · 2018-02-14T17:37:01.000+07:00
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 # php restful api response implement PSR-7: HTTP message interfaces
 
+[![Build Status](https://travis-ci.org/harryosmar/php-restful-api-response.svg?branch=master)](https://travis-ci.org/harryosmar/php-restful-api-response)
+
 ## Requirements
 - php >= 5.6
 - composer https://getcomposer.org/download/
