adding the README

Signed-off-by: Nima Kaviani <[email protected]>

examples/terraform-integrations/README.md

@@ -0,0 +1,6 @@
+# Terraform Integrations for Backstage
+
+This is an experimental effort allowing the users of the idpBuilder to run terraform modules using the tooling in place.
+
+This stack add-on goes together with the work done under [backstage-terraform-integrations](https://github.com/cnoe-io/backstage-terraform-integrations/).
+Once the add-on is enabled, the user will need to follow the setup discussed in the [backstage-terraform-integrations](https://github.com/cnoe-io/backstage-terraform-integrations/) repo for the remainder of the configuration, and terraform integrations should work.