update required

Author: kayx23

docs/en/latest/plugins/key-auth.md

@@ -44,9 +44,9 @@ When a Consumer is successfully authenticated, APISIX adds additional headers, s
 
 For Consumer/Credential:
 
-| Name | Type   | Requirement | Description                |
+| Name | Type   | Required | Description                |
 |------|--------|-------------|----------------------------|
-| key  | string | required    | Unique key for a Consumer. This field supports saving the value in Secret Manager using the [APISIX Secret](../terminology/secret.md) resource. |
+| key  | string | True    | Unique key for a Consumer. This field supports saving the value in Secret Manager using the [APISIX Secret](../terminology/secret.md) resource. |
 
 NOTE: `encrypt_fields = {"key"}` is also defined in the schema, which means that the field will be stored encrypted in etcd. See [encrypted storage fields](../plugin-develop.md#encrypted-storage-fields).