chore: Add GitHub Settings (#187)

Author: osterman

.github/settings.yml

@@ -0,0 +1,7 @@
+# Upstream changes from _extends are only recognized when modifications are made to this file in the default branch.
+_extends: .github
+repository:
+  name: terraform-aws-ec2-instance
+  description: Terraform module for provisioning a general purpose EC2 host
+  homepage: https://cloudposse.com/accelerate
+  topics: aws, ec2, security, instance, ansible, terraform, terraform-modules, hcl2