Update README.md

xerial · xerial · commit b51a46424fde · 2014-11-11T10:30:50.000+09:00
diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@ MessagePack for Java
 
  * Message Pack specification: <https://github.com/msgpack/msgpack/blob/master/spec.md>
 
-MessagePack v7 (0.7.x) is a faster implementation of the previous version [v06](https://github.com/msgpack/msgpack-java/tree/v06), and supports all of the message pack types, including extended types, in the specification. 
+MessagePack v7 (0.7.x) is a faster implementation of the previous version [v06](https://github.com/msgpack/msgpack-java/tree/v06), and supports all of the message pack types, including [extended format](https://github.com/msgpack/msgpack/blob/master/spec.md#formats-ext).
 
 ## Quick Start
 
