Add a link to releases

Author: maciejhirsz

README.md

@@ -8,10 +8,12 @@
 
 Parse and serialize [JSON](http://json.org/) with ease.
 
+**[Changelog](https://github.com/maciejhirsz/json-rust/releases) -**
 **[Complete Documentation](http://terhix.com/doc/json/) -**
 **[Cargo](https://crates.io/crates/json) -**
 **[Repository](https://github.com/maciejhirsz/json-rust)**
 
+
 ## Why?
 
 JSON is a very loose format where anything goes - arrays can hold mixed