[README] fix info about testing

README.md

@@ -12,7 +12,7 @@ for the basic module `Database.PGMQ.Simple`.
 
 First, choose which container image to use:
 ```shell
-export PGMQ_CONTAINER=docker.io/cgenie/pgmq:16-1.3.3.1
+export PGMQ_CONTAINER=quay.io/tembo/pg16-pgmq:latest
 ```
 However, with the above container, some tests might fail because certain functions
 throw errors when a table is not present (e.g. `pgmq.drop_queue`).
@@ -26,14 +26,14 @@ export PGMQ_CONTAINER=cgenie/pgmq:16-1.3.3.1
 
 To run the tests, first start a PGMQ container:
 ```shell
-  podman run --name pgmq -e POSTGRES_PASSWORD=postgres -p 5432:5432 $PGMQ_CONTAINER
+  podman run --rm --name pgmq -e POSTGRES_PASSWORD=postgres -p 5432:5432 $PGMQ_CONTAINER
 ```
 or with Docker:
 ```shell
-  docker run --name pgmq -e POSTGRES_PASSWORD=postgres -p 5432:5432 $PGMQ_CONTAINER
+  docker run --rm --name pgmq -e POSTGRES_PASSWORD=postgres -p 5432:5432 $PGMQ_CONTAINER
 ```
 Then, execute the tests:
 ```shell
-  cabal v2-run simple-test
+  cabal v2-test
 ```
 The tests should print debug information and complete without errors.