remove useless tab

Signed-off-by: 24sama <[email protected]>

Author: 24sama

docs/book/src/user/quick-start.md

@@ -441,8 +441,6 @@ clusterctl init --infrastructure ibmcloud
 clusterctl init --infrastructure kubekey
 ```
 
-{{#/tab }}
-
 {{#/tab }}
 {{#tab Kubevirt}}
 
@@ -819,6 +817,8 @@ export INSTANCES=<your-linux-ip-address>
 export CONTROL_PLANE_ENDPOINT_IP=<your-control-plane-virtual-ip>
 ```
 
+Please visit the [KubeKey provider] for more information.
+
 {{#/tab }}
 {{#tab Kubevirt}}
 
@@ -1243,6 +1243,7 @@ See the [clusterctl] documentation for more detail about clusterctl supported ac
 [management cluster]: ../reference/glossary.md#management-cluster
 [Metal3 getting started guide]: https://github.com/metal3-io/cluster-api-provider-metal3/blob/master/docs/getting-started.md
 [Metal3 provider]: https://github.com/metal3-io/cluster-api-provider-metal3/
+[KubeKey provider]: https://github.com/kubesphere/kubekey
 [Kubevirt provider]: https://github.com/kubernetes-sigs/cluster-api-provider-kubevirt/
 [oci-provider]: https://oracle.github.io/cluster-api-provider-oci/#getting-started
 [Equinix Metal getting started guide]: https://github.com/kubernetes-sigs/cluster-api-provider-packet#using