Fix documentation for client overwriting.

Resources/doc/cookbook/suppress-server-errors.md

@@ -1,5 +1,5 @@
 Suppressing Server Errors
-========================
+=========================
 
 By default, exceptions from the Elastica client library will propagate through
 the bundle's Client class. For instance, if the Elasticsearch server is offline,
@@ -12,25 +12,44 @@ container parameter with a custom class. In the following example, we override
 the `Client::request()` method and return the equivalent of an empty search
 response if an exception occurred.
 
-```
+Sample client code:
+-------------------
+
+```php
 <?php
 
 namespace Acme\ElasticaBundle;
 
-use FOS\ElasticaBundle\Client as BaseClient;
-
 use Elastica\Exception\ExceptionInterface;
+use Elastica\Request;
 use Elastica\Response;
+use FOS\ElasticaBundle\Client as BaseClient;
 
 class Client extends BaseClient
 {
-    public function request($path, $method, $data = array())
+    public function request($path, $method = Request::GET, $data = array(), array $query = array())
     {
         try {
-            return parent::request($path, $method, $data);
+            return parent::request($path, $method, $data, $query);
         } catch (ExceptionInterface $e) {
             return new Response('{"took":0,"timed_out":false,"hits":{"total":0,"max_score":0,"hits":[]}}');
         }
     }
 }
-```
+```
+
+Configuration change:
+---------------------
+
+```xml
+<?xml version="1.0"?>
+
+<container xmlns="http://symfony.com/schema/dic/services"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <parameters>
+        <parameter key="fos_elastica.client.class">Acme\ElasticaBundle\Client</parameter>
+    </parameters>
+
+</container>