Merge pull request #22 from nextcloud/style-add-method-chaining

style: ensure indentation with method chaining

src/Config.php

@@ -41,6 +41,7 @@ public function getRules() : array {
 			'method_argument_space' => [
 				'on_multiline' => 'ignore',
 			],
+			'method_chaining_indentation' => true,
 			'no_closing_tag' => true,
 			'no_leading_import_slash' => true,
 			'no_spaces_after_function_name' => true,