update supported container runtimes in configure-gmsa.md

Author: marosset

content/en/docs/tasks/configure-pod-container/configure-gmsa.md

@@ -10,7 +10,7 @@ weight: 20
 
 This page shows how to configure [Group Managed Service Accounts](https://docs.microsoft.com/en-us/windows-server/security/group-managed-service-accounts/group-managed-service-accounts-overview) (GMSA) for Pods and containers that will run on Windows nodes. Group Managed Service Accounts are a specific type of Active Directory account that provides automatic password management, simplified service principal name (SPN) management, and the ability to delegate the management to other administrators across multiple servers.
 
-In Kubernetes, GMSA credential specs are configured at a Kubernetes cluster-wide scope as Custom Resources. Windows Pods, as well as individual containers within a Pod, can be configured to use a GMSA for domain based functions (e.g. Kerberos authentication) when interacting with other Windows services. As of v1.16, the Docker runtime supports GMSA for Windows workloads.
+In Kubernetes, GMSA credential specs are configured at a Kubernetes cluster-wide scope as Custom Resources. Windows Pods, as well as individual containers within a Pod, can be configured to use a GMSA for domain based functions (e.g. Kerberos authentication) when interacting with other Windows services.
 
 ## {{% heading "prerequisites" %}}
 
@@ -66,7 +66,7 @@ Following are the steps for generating a GMSA credential spec YAML manually in J
 The following YAML configuration describes a GMSA credential spec named `gmsa-WebApp1`:
 
 ```yaml
-apiVersion: windows.k8s.io/v1alpha1
+apiVersion: windows.k8s.io/v1
 kind: GMSACredentialSpec
 metadata:
   name: gmsa-WebApp1  #This is an arbitrary name but it will be used as a reference