Update docs

Author: Riimu

CHANGES.md

@@ -1,5 +1,9 @@
 # Changelog #
 
+## v2.1.3 (2015-11-08) ##
+
+  * Ensure the tests run on both HHVM and PHP7
+
 ## v2.1.2 (2015-08-22) ##
 
   * The GMP encoder no longer tries to encode classes that extend the GMP class
@@ -24,7 +28,7 @@
   * The float encoder now behaves slightly differently when deciding whether to
     use the exponential float notation or not.
   * The float encoder now uses `serialize_precision` when the option `precision`
-    is set to `false` 
+    is set to `false`
   * Several methods will now throw an InvalidOptionException if any invalid
     encoder options have been provided
 

README.md

@@ -25,7 +25,7 @@ at: http://kit.riimu.net/api/phpencoder/
 [![Code Coverage](https://img.shields.io/scrutinizer/coverage/g/Riimu/Kit-PHPEncoder.svg?style=flat)](https://scrutinizer-ci.com/g/Riimu/Kit-PHPEncoder/)
 [![Scrutinizer Code Quality](https://img.shields.io/scrutinizer/g/Riimu/Kit-PHPEncoder.svg?style=flat)](https://scrutinizer-ci.com/g/Riimu/Kit-PHPEncoder/)
 [![HHVM Status](https://img.shields.io/hhvm/riimu/kit-phpencoder.svg)](http://hhvm.h4cc.de/package/riimu/kit-phpencoder)
-![PHP7 Status](https://img.shields.io/badge/PHP7-tested-brightgreen.svg)
+[![PHP7 Status](https://img.shields.io/badge/PHP7-tested-brightgreen.svg)]()
 
 ## Requirements ##