- Updated docs

Author: dash8x

docs/generating-api-docs/adding-additional-fields.md

@@ -60,36 +60,79 @@ public static function apiDocAdditionalShowQueryParameters(): array
 
 Use this method to specify additional fields that can be selected for the `index` endpoint.
 
+```php
+public static function apiDocAdditionalIndexAllowedFields(): array
+{
+    return [];
+}
+```
 
 ## apiDocAdditionalIndexAllowedAppends()
 
 Use this method to specify additional model accessor fields (appends) that can be included in the `index` endpoint response.
 
+```php
+public static function apiDocAdditionalIndexAllowedAppends(): array
+{
+    return [];
+}
+```
 
 ## apiDocAdditionalShowAllowedFields()
 
 Use this method to specify additional fields that can be selected for the `show` endpoint. By default, this returns the same fields as `apiDocAdditionalIndexAllowedFields()`.
 
+```php
+public static function apiDocAdditionalShowAllowedFields(): array
+{
+    return static::apiDocAdditionalIndexAllowedFields();
+}
+```
 
 ## apiDocAdditionalShowAllowedAppends()
 
 Use this method to specify additional model accessor fields (appends) that can be included in the `show` endpoint response. By default, this returns the same appends as `apiDocAdditionalIndexAllowedAppends()`.
 
+```php
+public static function apiDocAdditionalShowAllowedAppends(): array
+{
+    return static::apiDocAdditionalIndexAllowedAppends();
+}
+```
 
 ## apiDocAdditionalAllowedSorts()
 
 Use this method to specify additional fields that can be used for sorting results.
 
+```php
+public static function apiDocAdditionalAllowedSorts(): array
+{
+    return [];
+}
+```
 
 ## apiDocAdditionalAllowedIncludes()
 
 Use this method to specify additional relations that can be included in the response.
 
+```php
+public static function apiDocAdditionalAllowedIncludes(): array
+{
+    return [];
+}
+```
 
 ## apiDocAdditionalAllowedFilters()
 
 Use this method to specify additional filters that can be applied to the query. You can return both simple field names as strings or `AllowedFilter` instances for more complex filters.
 
+```php
+public static function apiDocAdditionalAllowedFilters(): array
+{
+    return [];
+}
+```
+
 ## apiFieldsDescription()
 
 Use this method to override the default fields description or append to it.