Fix readme (#4)

Signed-off-by: Matt Moore <[email protected]>

.github/workflows/documentation.yaml

@@ -23,4 +23,4 @@ jobs:
           fail-on-diff: "true"
 
       - if: failure()
-        run: cat README.md
+        run: cat ${{ matrix.module }}/README.md

authorize-private-service/README.md

@@ -0,0 +1,47 @@
+# `authorize-private-service`
+
+This module takes a reference to a private Cloud Run service, authorizes the
+named service account to invoke that service, and returns the URI.
+
+Effectively this module encapsulates:
+```
+{project, region, name}  --(authorize)-->  {uri}
+```
+
+<!-- BEGIN_TF_DOCS -->
+## Requirements
+
+No requirements.
+
+## Providers
+
+| Name | Version |
+|------|---------|
+| <a name="provider_google"></a> [google](#provider\_google) | n/a |
+
+## Modules
+
+No modules.
+
+## Resources
+
+| Name | Type |
+|------|------|
+| [google_cloud_run_v2_service_iam_member.authorize-calls](https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/cloud_run_v2_service_iam_member) | resource |
+| [google_cloud_run_v2_service.this](https://registry.terraform.io/providers/hashicorp/google/latest/docs/data-sources/cloud_run_v2_service) | data source |
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|------|---------|:--------:|
+| <a name="input_name"></a> [name](#input\_name) | The name of the Cloud Run service in this region. | `string` | n/a | yes |
+| <a name="input_project_id"></a> [project\_id](#input\_project\_id) | n/a | `string` | n/a | yes |
+| <a name="input_region"></a> [region](#input\_region) | The region in which this Cloud Run service is based. | `string` | n/a | yes |
+| <a name="input_service-account"></a> [service-account](#input\_service-account) | The email of the service account being authorized to invoke the private Cloud Run service. | `string` | n/a | yes |
+
+## Outputs
+
+| Name | Description |
+|------|-------------|
+| <a name="output_uri"></a> [uri](#output\_uri) | The URI of the private Cloud Run service. |
+<!-- END_TF_DOCS -->