Improve README.md with configuration settings

README.md

@@ -3,3 +3,29 @@ RedisArray Cache Storage Adapter for ZF2
 
 This is RedisArray Cache Storage Adapter component for ZF2 inspired by \Zend\Cache\Storage\Adapter\Redis
 
+Configuration settings
+------------------------
+
+In your config/autoload/redis-array.php put the following settings to define the servers_array:
+
+```php
+return array(
+    'caches' => array(
+        'Cache\General' => array(
+            'adapter' => array(
+                'name' => '\Smoke\Cache\Storage\Adapter\RedisArray'
+            ),
+            'options' => array(
+                'servers_array' => array(
+                    array('host' => 'host1'/*, 'port' => 1234*/),
+                    array('host' => 'host2')
+                ),
+                //'lazy_connect' => true,
+                //'connect_timeout' => 15
+            ),
+        ),
+    ),
+);
+```
+
+For the rest of the ZF2 Cache Factory needed settings follow http://framework.zend.com/manual/2.3/en/modules/zend.cache.storage.adapter.html