Docs: Fix config controller list argument in LZ V2 docs - missing anthos service identifier - align docs with setup.sh script

[fmichaelobrien]

before

• via https://github.com/GoogleCloudPlatform/pubsec-declarative-toolkit/tree/main/docs/landing-zone-v2#gitops "If you have forgotten the name of the instance you can run gcloud config controller list to reveal the instances in your project." to "If you have forgotten the name of the instance you can run gcloud anthos config controller list to reveal the instances in your project."

  admin_@cloudshell:~/pdt-arg (pdt-arg-kcc11)$ gcloud config controller list
  ERROR: (gcloud.config) Invalid choice: 'controller'.
  Maybe you meant:
  gcloud anthos
  gcloud config

After - gcloud testing

• same as https://github.com/GoogleCloudPlatform/pubsec-declarative-toolkit/blob/gh446-hub/solutions/setup.sh#L203

  admin_@cloudshell:~/pdt-arg (pdt-arg)$ gcloud config set project pdt-arg-kcc11
  Updated property [core/project].
  admin_@cloudshell:~/pdt-arg (pdt-arg-kcc11)$ gcloud anthos config controller list
  NAME: pdt-arg
  LOCATION: northamerica-northeast1
  STATE: RUNNING

Alternate gcloud references verified

• no delete section = ok - https://github.com/ssc-spc-ccoe-cei/gcp-tools/blob/main/scripts/bootstrap/setup-kcc.sh
• ok - https://github.com/GoogleCloudPlatform/pubsec-declarative-toolkit/blob/gh446-hub/solutions/setup.sh#L203

[fmichaelobrien]

deletion reference

admin_@cloudshell:~/pdt-arg (pdt-arg-kcc11)$ gcloud anthos config controller delete pdt-arg --location northamerica-northeast1
You are about to delete instance [pdt-arg]

Do you want to continue (Y/n)?  y

Delete request issued for: [pdt-arg]
Waiting for operation [projects/pdt-arg-kcc11/locations/northamerica-northeast1/operations/operation-1701183889978-60b37bd75b354-a36d9932-425a60a4] to complete...working..