Fix Outdated Information and add Information regarding docker compose down to Quickstart (#1497)

* Fix Outdated Information and Add Information regarding docker compose down to Quickstart

* Revision 2

* Remove shutdown from README

* typo

Author: adnanhemani

site/content/in-dev/unreleased/getting-started/quickstart.md

@@ -36,7 +36,7 @@ cd ~/polaris
   :polaris-quarkus-admin:assemble --rerun \
   -Dquarkus.container-image.tag=postgres-latest \
   -Dquarkus.container-image.build=true
-docker compose -f getting-started/eclipselink/docker-compose.yml up
+docker compose -f getting-started/eclipselink/docker-compose-postgres.yml -f getting-started/eclipselink/docker-compose-bootstrap-db.yml -f getting-started/eclipselink/docker-compose.yml up
 ```
 
 You should see output for some time as Polaris, Spark, and Trino build and start up. Eventually, you won’t see any more logs and see some logs relating to Spark, resembling the following:
@@ -55,7 +55,7 @@ export CLIENT_ID=root
 export CLIENT_SECRET=s3cr3t
 ```
 
-The Docker image pre-configures a sample catalog called `polaris_demo` that uses a local file system.
+The Docker image pre-configures a sample catalog called `quickstart_catalog` that uses a local file system.
 
 ## Running Polaris as a Standalone Process
 

site/content/in-dev/unreleased/getting-started/using-polaris.md

@@ -303,5 +303,9 @@ curl -v http://127.0.0.1:8181/api/management/v1/catalogs/quickstart_catalog -H "
 ## Next Steps
 * Visit [Configuring Polaris for Production]({{% relref "../configuring-polaris-for-production" %}}).
 * A Getting Started experience for using Spark with Jupyter Notebooks is documented [here](https://github.com/apache/polaris/blob/main/getting-started/spark/README.md).
+* To shut down a locally-deployed Polaris server and clean up all related Docker containers, run the command listed below. Cloud Deployments have their respective termination commands on their Deployment page, while Polaris running on Gradle will terminate when the Gradle process terminates.
+```shell
+docker compose -f getting-started/eclipselink/docker-compose-postgres.yml -f getting-started/eclipselink/docker-compose-bootstrap-db.yml -f getting-started/eclipselink/docker-compose.yml down
+```