Update README.md

Author: Idrinth

README.md

@@ -2,6 +2,7 @@
 Provides a useful session handler using memcached for php
 
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/0a0cea977f37463db99d0e2380155511)](https://www.codacy.com/app/Idrinth/PhpMemcachedSession?utm_source=github.com&utm_medium=referral&utm_content=Yet-Another-Web-Stack/Session-PHP-Memcached&utm_campaign=Badge_Grade)
+[![Code Climate](https://codeclimate.com/github/Yet-Another-Web-Stack/Session-PHP-Memcached/badges/gpa.svg)](https://codeclimate.com/github/Yet-Another-Web-Stack/Session-PHP-Memcached)
 
 This project requires either Memcached to work as a storage medium. memcache can be made to work, but will unlikely be the system of choice for most users.
 
@@ -26,4 +27,4 @@ The required and proposed defaults can be set with the Configuration-Class.
 * memcache_user: no default, only use if the memcache is password protected
 * memcache_password: no default, only use if the memcache is password protected
 * serializer: a callable to serialize the session
-* unserializer: a callable to unserialize the session
+* unserializer: a callable to unserialize the session