Update CODEOWNERS (#330)

Author: bbasata

.github/CODEOWNERS

@@ -1,19 +1 @@
-* @hashicorp/terraform-devex
-
-# engineering and web presence get notified of, and can approve changes to web tooling, but not content.
-
-/website/               @hashicorp/web-presence @hashicorp/terraform-devex
-/website/data/
-/website/public/
-/website/content/
-
-# education and engineering get notified of, and can approve changes to web content.
-
-/website/data/          @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-/website/public/        @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-/website/content/       @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-/website/docs/          @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-/website/img/           @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-/website/README.md      @hashicorp/team-docs-packer-and-terraform @hashicorp/terraform-devex
-
-
+* @hashicorp/terraform-core-plugins