Updated Terraform versions in README

README.md

@@ -32,9 +32,9 @@ Sponsored by [Cloudcraft - the best way to draw AWS diagrams](https://cloudcraft
 
 ## Terraform versions
 
-For Terraform 0.12 use version `v2.*` of this module.
+Terraform 0.12. Pin module version to `~> v2.0`. Submit pull-requests to `master` branch.
 
-If you are using Terraform 0.11 you can use versions `v1.*`.
+Terraform 0.11. Pin module version to `~> v1.0`. Submit pull-requests to `terraform011` branch.
 
 ## Usage
 
@@ -86,13 +86,13 @@ module "vpc" {
   enable_nat_gateway  = true
   single_nat_gateway  = false
   reuse_nat_ips       = true                    # <= Skip creation of EIPs for the NAT Gateways
-  external_nat_ip_ids = ["${aws_eip.nat.*.id}"]   # <= IPs specified here as input to the module
+  external_nat_ip_ids = "${aws_eip.nat.*.id}"   # <= IPs specified here as input to the module
 }
 ```
 
 Note that in the example we allocate 3 IPs because we will be provisioning 3 NAT Gateways (due to `single_nat_gateway = false` and having 3 subnets).
 If, on the other hand, `single_nat_gateway = true`, then `aws_eip.nat` would only need to allocate 1 IP.
-Passing the IPs into the module is done by setting two variables `reuse_nat_ips = true` and `external_nat_ip_ids = ["${aws_eip.nat.*.id}"]`.
+Passing the IPs into the module is done by setting two variables `reuse_nat_ips = true` and `external_nat_ip_ids = "${aws_eip.nat.*.id}"`.
 
 ## NAT Gateway Scenarios