Fix linting issue

Author: loafoe

docs/resources/iam_service.md

@@ -83,7 +83,6 @@ The following arguments are supported:
 * `self_managed_certificate_nonsensitive` - (Optional) X509 Certificate in PEM format. When provided, overrides the generated certificate / private key combination of the IAM service.
   This gives you full control over the credentials. When not specified, a private key will be generated by IAM. Mutually exclusive with `self_managed_private_key`
 
-
 ## Attributes Reference
 
 In addition to all arguments above, the following attributes are exported: