Don't create superuser with default credentials

docker-compose.override.yml.example

@@ -6,11 +6,18 @@ services:
     # If you want the Nginx unit status page visible from the
     # outside of the container add the following port mapping:
     # - "8001:8081"
-    healthcheck:
+    # healthcheck:
       # Time for which the health check can fail after the container is started.
       # This depends mostly on the performance of your database. On the first start,
       # when all tables need to be created the start_period should be higher than on
       # subsequent starts. For the first start after major version upgrades of NetBox
       # the start_period might also need to be set higher.
       # Default value in our docker-compose.yml is 60s
-      start_period: 90s
+      # start_period: 90s
+    # environment:
+      # SKIP_SUPERUSER: "false"
+      # SUPERUSER_API_TOKEN: ""
+      # SUPERUSER_EMAIL: ""
+      # SUPERUSER_NAME: ""
+      # SUPERUSER_PASSWORD: ""
+