Update readme for renaming module. Update tests

Author: Steven Nemetz

README.md

@@ -1,4 +1,4 @@
-AWS S3 Bucket Terraform module
+AWS S3 Buckets Terraform module
 ========================
 
 Terraform module which creates S3 buckets on AWS.
@@ -8,7 +8,7 @@ Usage
 
 ```hcl
 module "s3-buckets" {
-  source      = "devops-workflow/s3-bucket/aws"
+  source      = "devops-workflow/s3-buckets/aws"
   names       = ["bucket-1", "bucket2", "bucket_3"]
   environment = "dev"
   org         = "corp"

test/main.tf

@@ -1,14 +1,21 @@
 
+module "s3-none" {
+  source      = ".."
+  names       = []
+  environment = "${var.environment}"
+  org         = "${var.organization}"
+}
+
 module "s3-single" {
   source      = ".."
   names       = ["bucket"]
   environment = "${var.environment}"
-  org         = "zapter"
+  org         = "${var.organization}"
 }
 
 module "s3-multi" {
   source      = ".."
   names       = ["bucket-1", "bucket2", "bucket_3"]
   environment = "${var.environment}"
-  org         = "zapter"
+  org         = "${var.organization}"
 }

test/variables.tf

@@ -1,6 +1,9 @@
 variable "environment" {
   default = "dev"
 }
+variable "organization" {
+  default = "testorg"
+}
 variable "region" {
   default = "us-west-2"
 }