(v2.1) simplify config

Author: kevincobain2000

config/request-docs.php

@@ -31,10 +31,8 @@
 
     // https://github.com/rakutentech/laravel-request-docs/pull/92
     // When rules are put in other method than rules()
-    'request_methods' => [
-        'rules',
-        'onCreate',
-        'onUpdate',
+    'rules_methods' => [
+        'rules'
     ],
 
     // No need to touch below

src/LaravelRequestDocs.php

@@ -214,7 +214,7 @@ public function appendRequestRules(array $controllersInfo): array
                     //throw $th;
                 }
 
-                foreach (config('request-docs.request_methods') as $requestMethod) {
+                foreach (config('request-docs.rules_methods') as $requestMethod) {
                     if ($requestClass && method_exists($requestClass, $requestMethod)) {
                         try {
                             $controllersInfo[$index]['rules'] = array_merge($controllersInfo[$index]['rules'], $this->flattenRules($requestClass->$requestMethod()));