Add 'core-team' topic to repository settings

Author: ocofaigh

.github/settings.yml

@@ -25,7 +25,7 @@ repository:
   description: "Sample mock stack for testing"
 
   # Use a comma-separated list of topics to set on the repo (ensure not to use any caps in the topic string).
-  topics: terraform, ibm-cloud, terraform-stack, ibm-cloud-stack
+  topics: terraform, ibm-cloud, terraform-stack, ibm-cloud-stack, core-team
 branches:
   - name: main
     protection: