docs(oidc-provider-example): update requirements and providers section similar to modules

Author: lanandra

examples/iam-oidc-provider/README.md

@@ -26,10 +26,14 @@ Run `terraform destroy` when you don't need these resources.
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.5.7 |
 | <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 6.0 |
+| <a name="requirement_tls"></a> [tls](#requirement\_tls) | >= 3.0 |
 
 ## Providers
 
-No providers.
+| Name | Version |
+|------|---------|
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 6.0 |
+| <a name="provider_tls"></a> [tls](#provider\_tls) | >= 3.0 |
 
 ## Modules