docs: fix incorrect sample code

Author: kenjis

user_guide_src/source/outgoing/view_parser/009.php

@@ -4,7 +4,9 @@
 
 $data = [
     'name'     => 'George',
-    'location' => ['city' => 'Red City', 'planet' => 'Mars'],
+    'location' => [
+        ['city' => 'Red City', 'planet' => 'Mars'],
+    ],
 ];
 
 return $parser->setData($data)->renderString($template);