resolve comments

quickstart/201-vm-disk-encryption-extension/providers.tf

@@ -0,0 +1,20 @@
+terraform {
+  required_version = ">=1.0"
+
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = "~>3.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {
+    key_vault {
+      recover_soft_deleted_key_vaults    = false
+      purge_soft_delete_on_destroy       = false
+      purge_soft_deleted_keys_on_destroy = false
+    }
+  }
+}