Update branch name

Author: Lee Hicks

README.md

@@ -11,7 +11,7 @@ Creates the following resources:
 
 Terraform 0.13 and later. Pin module version to ~> 3.0.0. Submit pull-requests to master branch.
 
-Terraform 0.12. Pin module version to ~> 2.0.0. Submit pull-requests to terraform011 branch.
+Terraform 0.12. Pin module version to ~> 2.0.0. Submit pull-requests to terraform012 branch.
 
 ## Usage