Update README.md

README.md

-# apollo
+# Apollo
+[![Build Status](https://travis-ci.org/ctripcorp/apollo.svg?branch=master)](https://travis-ci.org/ctripcorp/apollo)
+[![GitHub release](https://img.shields.io/github/release/ctripcorp/apollo.svg)](https://github.com/ctripcorp/apollo/releases)
+[![Coverage Status](https://coveralls.io/repos/ctripcorp/apollo/badge.svg?branch=master&service=github)](https://coveralls.io/github/ctripcorp/apollo?branch=master)
+
 Ctrip Configuration Center