Update README.md

README.md

@@ -5,7 +5,8 @@ Sky Walking
 
 SkyWalking: Large-Scale Distributed Systems Tracing Infrastructure, 是一个对JAVA分布式应用程序集群的业务运行情况进行追踪、告警和分析的系统。
 
-![Build Status](https://travis-ci.org/wu-sheng/sky-walking.svg?branch=master)](https://travis-ci.org/wu-sheng/sky-walking)
+[![Build Status](https://travis-ci.org/wu-sheng/sky-walking.svg?branch=master)](https://travis-ci.org/wu-sheng/sky-walking)
+
 ![license](https://img.shields.io/badge/License-Apache%202-blue.svg)
 
 # 简介 / abstract