CCM-8588 Update terraform-docs

Author: nicki-nhs

infrastructure/terraform/components/app/README.md

@@ -31,6 +31,7 @@
 | <a name="input_enable_cognito_built_in_idp"></a> [enable\_cognito\_built\_in\_idp](#input\_enable\_cognito\_built\_in\_idp) | Enable the use of Cognito as an IDP; CIS2 is prefered | `bool` | `false` | no |
 | <a name="input_enable_event_caching"></a> [enable\_event\_caching](#input\_enable\_event\_caching) | Enable caching of events to an S3 bucket | `bool` | `true` | no |
 | <a name="input_enable_letters"></a> [enable\_letters](#input\_enable\_letters) | Feature flag for letters | `string` | `false` | no |
+| <a name="input_enable_proofing"></a> [enable\_proofing](#input\_enable\_proofing) | Feature flag for proofing | `string` | `false` | no |
 | <a name="input_environment"></a> [environment](#input\_environment) | The name of the tfscaffold environment | `string` | n/a | yes |
 | <a name="input_event_delivery_logging"></a> [event\_delivery\_logging](#input\_event\_delivery\_logging) | Enable SNS Event Delivery logging | `bool` | `true` | no |
 | <a name="input_event_delivery_logging_success_sample_percentage"></a> [event\_delivery\_logging\_success\_sample\_percentage](#input\_event\_delivery\_logging\_success\_sample\_percentage) | Enable caching of events to an S3 bucket | `number` | `0` | no |