Category.md in voucherify-6.0.0

- old
+ new
@@ -2,13 +2,13 @@
 
 ## Properties
 
 | Name | Type | Description | Notes |
 | ---- | ---- | ----------- | ----- |
-| **id** | **String** | Unique category ID assigned by Voucherify. |  |
-| **name** | **String** | Category name. |  |
-| **hierarchy** | **Integer** | Category hierarchy. |  |
-| **object** | **String** | The type of object represented by the JSON. This object stores information about the category. | [default to &#39;category&#39;] |
-| **created_at** | **Time** | Timestamp representing the date and time when the category was created in ISO 8601 format. |  |
-| **updated_at** | **Time** | Timestamp representing the date and time when the category was updated in ISO 8601 format. | [optional] |
+| **id** | **String** | Unique category ID assigned by Voucherify. | [optional] |
+| **name** | **String** | Category name. | [optional] |
+| **hierarchy** | **Integer** | Category hierarchy. | [optional] |
+| **object** | **String** | The type of the object represented by the JSON. This object stores information about the category. | [optional][default to &#39;category&#39;] |
+| **created_at** | **Time** | Timestamp representing the date and time when the category was created. The value is shown in the ISO 8601 format. | [optional] |
+| **updated_at** | **Time** | Timestamp representing the date and time when the category was updated. The value is shown in the ISO 8601 format. | [optional] |
 | **stacking_rules_type** | **String** | The type of the stacking rule eligibility. | [optional] |
 