Update README.md

Author: javadev

lodash-plugin/README.md

@@ -2,7 +2,7 @@ The lodash plugin for underscore-java
 =====================================
 
 [![Maven Central](https://img.shields.io/maven-central/v/com.github.javadev/underscore-lodash.svg)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22com.github.javadev%22%20AND%20a%3A%22underscore-lodash%22)
-[![Build Status](https://secure.travis-ci.org/javadev/underscore-java.png)](https://travis-ci.org/javadev/underscore-java)
+[![Build Status](https://secure.travis-ci.org/javadev/underscore-java.svg)](https://travis-ci.org/javadev/underscore-java)
 
 Requirements
 ============