fix typo

README.md

@@ -34,7 +34,7 @@ module "mwaa" {
   min_workers           = 1
   max_workers           = 25
   webserver_access_mode = "PUBLIC_ONLY" # Default PRIVATE_ONLY for production environments
-  
+
   input_iam_role_additional_policies = {
     "additional-policy-1" = "<ENTER_POLICY_ARN1>"
     "additional-policy-2" = "<ENTER_POLICY_ARN2>"
@@ -139,7 +139,7 @@ No modules.
 | <a name="input_environment_class"></a> [environment\_class](#input\_environment\_class) | (Optional) Environment class for the cluster. Possible options are mw1.small, mw1.medium, mw1.large.<br>Will be set by default to mw1.small. Please check the AWS Pricing for more information about the environment classes. | `string` | `"mw1.small"` | no |
 | <a name="input_execution_role_arn"></a> [execution\_role\_arn](#input\_execution\_role\_arn) | (Required) The Amazon Resource Name (ARN) of the task execution role that the Amazon MWAA and its environment can assume<br>Mandatory if `create_iam_role=false` | `string` | `null` | no |
 | <a name="input_force_detach_policies"></a> [force\_detach\_policies](#input\_force\_detach\_policies) | IAM role Force detach policies | `bool` | `false` | no |
-| <a name="input_iam_role_additional_policies"></a> [iam\_role\_additional\_policies](#input\_iam\_role\_additional\_policies) | A map of additional policy arms to be added to the IAM role, with an arbitary key name | `map(string)` | `{}` | no |
+| <a name="input_iam_role_additional_policies"></a> [iam\_role\_additional\_policies](#input\_iam\_role\_additional\_policies) | A map of additional policy ARNs to be added to the IAM role, with an arbitary key name | `map(string)` | `{}` | no |
 | <a name="input_iam_role_name"></a> [iam\_role\_name](#input\_iam\_role\_name) | IAM Role Name to be created if execution\_role\_arn is null | `string` | `null` | no |
 | <a name="input_iam_role_path"></a> [iam\_role\_path](#input\_iam\_role\_path) | IAM role path | `string` | `"/"` | no |
 | <a name="input_iam_role_permissions_boundary"></a> [iam\_role\_permissions\_boundary](#input\_iam\_role\_permissions\_boundary) | IAM role Permission boundary | `string` | `null` | no |