chore: update travis ci badges (#2394)

Author: prudhvir3ddy

README.md

@@ -1,6 +1,6 @@
 # Open Event Attendee App
-[![Build Status](https://travis-ci.org/fossasia/open-event-attendee-android.svg?branch=development)](https://travis-ci.org/fossasia/open-event-attendee-android?branch=development)
-[![Build Status](https://travis-ci.org/fossasia/open-event-attendee-android.svg?branch=master)](https://travis-ci.org/fossasia/open-event-attendee-android?branch=master)
+[![Build Status](https://img.shields.io/travis/fossasia/open-event-attendee-android/development.svg?label=development)](https://travis-ci.org/fossasia/open-event-attendee-android?branch=development)
+[![Build Status](https://img.shields.io/travis/fossasia/open-event-attendee-android/master.svg?label=master)](https://travis-ci.org/fossasia/open-event-attendee-android?branch=master)
 [![Join the chat at https://gitter.im/fossasia/open-event-android](https://badges.gitter.im/fossasia/open-event-android.svg)](https://gitter.im/fossasia/open-event-android?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Mailing List](https://img.shields.io/badge/Mailing%20List-FOSSASIA-blue.svg)](https://groups.google.com/forum/#!forum/open-event)
 [![Twitter Follow](https://img.shields.io/twitter/follow/eventyay.svg?style=social&label=Follow&maxAge=2592000?style=flat-square)](https://twitter.com/eventyay)