Update internal/creator/templates/pack_readme.md

Co-authored-by: Charlie Voiselle <[email protected]>

internal/creator/templates/pack_readme.md

@@ -29,7 +29,7 @@ service reads from.
 - `count` (number:2) - The number of app instances to deploy
 - `job_name` (string) - The name to use as the job name which overrides using
   the pack name
-- `datacenters` (list of strings:["dc1"]) - A list of datacenters in the region which
+- `datacenters` (list of strings:["*"]) - A list of datacenters in the region which
   are eligible for task placement
 - `region` (string) - The region where jobs will be deployed
 - `register_service` (bool: true) - If you want to register a Nomad service