fix terminal commands (#63719)

Fix PDC terminal commands per @chaudyg suggestion

docs/sources/setup-grafana/configure-security/configure-private-datasource-connect/index.md

@@ -115,13 +115,13 @@ To set up a private data source connection, follow these steps:
 
      Additionally:
 
-     - ${PDC_GATEWAY}: The URL of the private data source connect in Grafana Cloud. The Grafana team will give you this URL. The URL follows the format `grafana-private-datasource-connect-<cluster>.grafana.net`
+     - ${PDC_GATEWAY}: The URL of the private data source connect in Grafana Cloud. The Grafana team will give you this URL. The URL follows the format `private-datasource-connect-<cluster>.grafana.net`
      - ${SLUG}: The name of the stack you want to connect to your data source. For example, the stack `test.grafana.net` has the slug `test.`
 
    - **Option 2:** Using the [pdc-agent](https://github.com/grafana/pdc-agent) docker [image](https://hub.docker.com/r/grafana/pdc-agent/tags)
 
      ```
-     docker run --rm --name pdc-agent -v $(pwd):/etc/keys grafana/pdc-agent:latest -i /etc/keys/${SLUG} ${SLUG}@host.docker.internal -p 2222 -o BatchMode=yes -o UserKnownHostsFile=/etc/keys/known_hosts -o CertificateFile=/etc/keys/${SLUG}-cert.pub -R 0 -v
+     docker run --rm --name pdc-agent -v $(pwd):/etc/keys grafana/pdc-agent:latest -i /etc/keys/${SLUG} ${SLUG}@${PDC_GATEWAY} -p 22 -o BatchMode=yes -o UserKnownHostsFile=/etc/keys/known_hosts -o CertificateFile=/etc/keys/${SLUG}-cert.pub -R 0 -v
      ```
 
      The flags used on this are a combination of:
@@ -130,7 +130,7 @@ To set up a private data source connection, follow these steps:
      - --name pdc-agent: This names the docker process pdc-agent
      - -v $(pwd):/etc/keys: Copies the working directory into the /etc/keys directory in the Docker container
      - -i /etc/keys/${SLUG}: The private key
-     - -p 2222: The docker container port
+     - -p 22: The port to connect to
      - -o [BatchMode](https://man.openbsd.org/ssh_config.5#BatchMode): Skips the passphrase checking
      - -o [UserKnownHostsFile](https://man.openbsd.org/ssh_config.5#UserKnownHostsFile): The list of Grafana PDC servers to trust when establishing a connection for the first time
      - -o [CertificateFile](https://man.openbsd.org/ssh_config.5#CertificateFile): Your public certificate