Fix incorrect cluster create command

[guessi]

What type of PR is this?

documentation

Which issue does this PR fix:

n/a

What does this PR do / Why do we need it:

Content of examples/ipv6-cluster.yaml is for eksctl but not kubectl.

aws-application-networking-k8s/docs/guides/deploy.md

Lines 121 to 122 in 26e8240

	# To create an IPv6 cluster
	kubectl apply -f examples/ipv6-cluster.yaml

aws-application-networking-k8s/examples/ipv6-cluster.yaml

Lines 1 to 25 in 26e8240

	---
	apiVersion: eksctl.io/v1alpha5
	kind: ClusterConfig
	metadata:
	name: my-ipv6-cluster
	region: us-west-2
	kubernetesNetworkConfig:
	ipFamily: IPv6
	addons:
	- name: vpc-cni
	version: latest
	- name: coredns
	version: latest
	- name: kube-proxy
	version: latest
	iam:
	withOIDC: true
	managedNodeGroups:
	- name: my-ipv6-nodegroup
	instanceType: t3.medium

If an issue # is not available please add repro steps and logs from aws-gateway-controller showing the issue:

n/a

Testing done on this change:

Automation added to e2e:

Will this PR introduce any new dependencies?:

Will this break upgrades or downgrades. Has updating a running cluster been tested?:

Does this PR introduce any user-facing change?:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[solmonk]

LGTM, thanks for spotting this!