Include eks auth access in joiners guide

runbooks/source/joiners-guide.html.md.erb

@@ -1,7 +1,7 @@
 ---
 title: Onboarding into the Cloud Platform Team
 weight: 9000
-last_reviewed_on: 2023-10-03
+last_reviewed_on: 2024-01-05
 review_in: 3 months
 ---
 
@@ -69,6 +69,7 @@ git config --global init.templateDir ~/.git-templates/git-secrets
 * New starter github user to be added to MOJ github organisation and WebOps team
 * Add to [MoJ 1Password](https://ministryofjustice.1password.eu/)
 * Authenticate to live cluster
+  * Add User to (EKS Admins group)[https://github.com/ministryofjustice/cloud-platform-infrastructure/blob/main/terraform/aws-accounts/cloud-platform-aws/vpc/eks/cluster.tf]
 * Create and destroy test cluster
 * Access to pagerduty
 * Create GPG key