Update docker/README.md

Co-authored-by: Jeremy Breiding <jbreiding@users.noreply.github.com>

Author: swyxio

docker/README.md

@@ -15,7 +15,7 @@ You can build the image by running `make`:
 make docker-auto-setup
 ```
 
-This will build a local `temporalio/auto-setup` docker image with the label "test".
+This will build a local `temporalio/auto-setup` docker image with the tag "test".
 
 To *run* the docker image with dependencies (e.g. PostgreSQL and Elasticsearch), you can use `docker-compose`. See our [docker-compose repo](https://github.com/temporalio/docker-compose) for reference configurations - and update the image accordingly to `image: temporalio/auto-setup:test`.