chore(examples): add internal example usage

Author: iru

examples-internal/single-account-benchmark/README.md

@@ -0,0 +1,10 @@
+## Usage
+
+```terraform
+module "cloudvision_aws_single_account" {
+  source = "github.com/sysdiglabs/terraform-aws-cloudvision//examples-internal/single-account-benchmark"
+  sysdig_secure_api_token = "00000000-1111-2222-3333-444444444444"
+}
+```
+
+see [`variables.tf`](./variables.tf) for more options

examples-internal/single-account-scanning/README.md

@@ -0,0 +1,10 @@
+## Usage
+
+```terraform
+module "cloudvision_aws_single_account" {
+  source = "github.com/sysdiglabs/terraform-aws-cloudvision//examples-internal/single-account-scanning"
+  sysdig_secure_api_token = "00000000-1111-2222-3333-444444444444"
+}
+```
+
+see [`variables.tf`](./variables.tf) for more options