Omit module version in usage example

Author: Kamil Hristov

README.md

@@ -24,7 +24,6 @@ A full example leveraging other community modules is contained in the [examples/
 ```hcl
 module "eks" {
   source                = "terraform-aws-modules/eks/aws"
-  version               = "0.1.0"
   cluster_name          = "test-eks-cluster"
   subnets               = ["subnet-abcde012", "subnet-bcde012a"]
   tags                  = "${map("Environment", "test")}"