Add automatic version detection to Javadoc badge

README.md

@@ -5,7 +5,7 @@
 
 [![Build Status](https://travis-ci.org/jcabi/jcabi-s3.svg?branch=master)](https://travis-ci.org/jcabi/jcabi-s3)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.jcabi/jcabi-s3/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.jcabi/jcabi-s3)
-[![JavaDoc](https://img.shields.io/badge/javadoc-html-blue.svg)](http://www.javadoc.io/doc/com.jcabi/jcabi-s2)
+[![Javadoc](https://javadoc-emblem.rhcloud.com/doc/com.jcabi/jcabi-s3/badge.svg)](http://www.javadoc.io/doc/com.jcabi/jcabi-s3)
 [![Dependencies](https://www.versioneye.com/user/projects/561aa1eca193340f32000fd3/badge.svg?style=flat)](https://www.versioneye.com/user/projects/561aa1eca193340f32000fd3)
 [![Coverage Status](https://coveralls.io/repos/jcabi/jcabi-s3/badge.svg?branch=master&service=github)](https://coveralls.io/github/jcabi/jcabi-s3?branch=master)