Add README and remove unused variables

tf-modules/azure/devops/README.md

@@ -0,0 +1,22 @@
+# DevOps Module
+
+Configuration in this directory creates an Azure DevOps Project and repository.
+
+## Usage
+
+```hcl
+provider "azuredevops" {
+  org_service_url       = "https://dev.azure.com/azuredevops_org"
+  personal_access_token = "azuredevops_pat"
+}
+
+module "devops" {
+  source = "git::https://github.com/fluxcd/test-infra.git//tf-modules/azure/devops"
+  providers = {
+    azuredevops = azuredevops
+  }
+  
+  project_name = local.project_name
+  repository_name = local.repo_name
+}
+```

tf-modules/azure/devops/variables.tf

@@ -1,13 +1,3 @@
-variable "organization" {
-  description = "The name of the Azure DevOps organization"
-  type        = string
-}
-
-variable "pat_token" {
-  description = "The Personal Access Token for Azure DevOps"
-  type        = string
-}
-
 variable "project_name" {
   description = "The name of the Azure DevOps project"
   type        = string