message: chore(readme): fix build link
diff: @@ -9,7 +9,7 @@ Best way to quickly integrate <a href="https://getbootstrap.com/">Bootstrap 3</a
  <p align="center">
  <a href="https://badge.fury.io/js/ngx-bootstrap"><img src="https://badge.fury.io/js/ngx-bootstrap.svg" alt="npm version" ></a>
  <a href="https://npmjs.org/ngx-bootstrap"><img src="https://img.shields.io/npm/dm/ngx-bootstrap.svg" alt="npm downloads" ></a>
  -<a href="https://npmjs.org/ngx-bootstrap"><img alt="" src="https://travis-ci.org/valor-software/ngx-bootstrap.svg?branch=master"></a>
  +<a href="https://travis-ci.org/valor-software/ngx-bootstrap"><img alt="" src="https://travis-ci.org/valor-software/ngx-bootstrap.svg?branch=development"></a>
  <br/>
  <a href="https://ngx-slack.herokuapp.com"><img src="https://ngx-slack.herokuapp.com/badge.svg" alt="slack" ></a>
  