Changed folder to match convention, added sample to top-level readme

quickstart/101-resource-group/main.tf

@@ -0,0 +1,17 @@
+terraform {
+  required_providers {
+    azurerm = {
+      source = "hashicorp/azurerm"
+      version = "~>2.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "rg" {
+  name = "${var.name}-${var.environment}-rg"
+  location = "${var.location}"
+}