reference example

.github/workflows/test-python-code.yaml

@@ -75,7 +75,7 @@ jobs:
       DB_USER: ${{ inputs.postgres-user }}
       DB_PASSWORD: ${{ inputs.postgres-password }}
     services:
-      postgres:
+      postgres: # https://docs.github.com/en/actions/use-cases-and-examples/using-containerized-services/creating-postgresql-service-containers
         image: postgres:${{ inputs.postgres-version }}
         env:
           POSTGRES_DB: ${{ env.DB_NAME }}