Minor tweak

Author: javiereguiluz

http_client.rst

@@ -141,14 +141,14 @@ You can configure the global options using the ``default_options`` option:
 You can also use the :method:`Symfony\\Contracts\\HttpClient\\HttpClientInterface::withOptions`
 method to retrieve a new instance of the client with new default options::
 
-        $this->client = $client->withOptions([
-            'base_uri' => 'https://...',
-            'headers' => ['header-name' => 'value0, value1, ...']
-        ]);
+    $this->client = $client->withOptions([
+        'base_uri' => 'https://...',
+        'headers' => ['header-name' => 'header-value']
+    ]);
 
 .. versionadded:: 5.3
 
-    The :method:`Symfony\\Contracts\\HttpClient\\HttpClientInterface::withOptions` method was introduced in Symfony 5.3.
+    The ``withOptions()`` method was introduced in Symfony 5.3.
 
 Some options are described in this guide: