Update terraform docs naming convention

doc/user/packages/terraform_module_registry/index.md

@@ -35,8 +35,8 @@ PUT /projects/:id/packages/terraform/modules/:module_name/:module_system/:module
 | Attribute          | Type            | Required | Description                                                                                                                      |
 | -------------------| --------------- | ---------| -------------------------------------------------------------------------------------------------------------------------------- |
 | `id`               | integer/string  | yes      | The ID or [URL-encoded path of the project](../../../api/index.md#namespaced-path-encoding).                                    |
-| `module_name`      | string          | yes      | The package name. It can contain only lowercase letters (`a-z`), uppercase letter (`A-Z`), numbers (`0-9`), or hyphens (`-`).
-| `module_system`    | string          | yes      | The package name. It can contain only lowercase letters (`a-z`), uppercase letter (`A-Z`), numbers (`0-9`), or hyphens (`-`).
+| `module_name`      | string          | yes      | The package name. It can contain only lowercase letters (`a-z`), uppercase letter (`A-Z`), numbers (`0-9`), or hyphens (`-`) and cannot exceed 64 characters.
+| `module_system`    | string          | yes      | The package system. It can contain only lowercase letters (`a-z`) and numbers (`0-9`), and cannot exceed 64 characters.
 | `module_version`   | string          | yes      | The package version. It must be valid according to the [Semantic Versioning Specification](https://semver.org/).
 
 Provide the file content in the request body.