Fix javadoc.io logo

Author: jknack

README.md

@@ -1,7 +1,7 @@
 [![Build Status](https://secure.travis-ci.org/jknack/handlebars.java.png?branch=master)](https://travis-ci.org/jknack/handlebars.java)
 [![Coverage Status](https://coveralls.io/repos/jknack/handlebars.java/badge.png)](https://coveralls.io/r/jknack/handlebars.java)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.jknack/handlebars/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.github.jknack/handlebars)
-[![javadoc](https://javadoc.io/badge/org.jooby/jooby.svg)](https://javadoc.io/doc/com.github.jknack/handlebars)
+[![javadoc](https://javadoc.io/badge/com.github.jknack/handlebars.svg)](https://javadoc.io/doc/com.github.jknack/handlebars)
 
 Handlebars.java
 ===============