Fix kubeadm-config links

This PR fixes the links for kubeadm-config APIs.

Author: tengqm

content/en/docs/reference/setup-tools/kubeadm/kubeadm-init-phase.md

@@ -144,7 +144,7 @@ install them selectively.
 {{< /tabs >}}
 
 For more details on each field in the `v1beta3` configuration you can navigate to our
-[API reference pages.] (https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3)
+[API reference pages.](/docs/reference/config-api/kubeadm-config.v1beta3/)
 
 ## {{% heading "whatsnext" %}}
 

content/en/docs/setup/production-environment/tools/kubeadm/control-plane-flags.md

@@ -14,7 +14,7 @@ and kube-proxy you can use `KubeletConfiguration` and `KubeProxyConfiguration`,
 
 All of these options are possible via the kubeadm configuration API.
 For more details on each field in the configuration you can navigate to our
-[API reference pages](https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3).
+[API reference pages](/docs/reference/config-api/kubeadm-config.v1beta3/).
 
 {{< note >}}
 Customizing the CoreDNS deployment of kubeadm is currently not supported. You must manually
@@ -202,7 +202,7 @@ For more details see [Configuring each kubelet in your cluster using kubeadm](/d
 To customize kube-proxy you can pass a `KubeProxyConfiguration` next your `ClusterConfiguration` or
 `InitConfiguration` to `kubeadm init` separated by `---`.
 
-For more details you can navigate to our [API reference pages](https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3).
+For more details you can navigate to our [API reference pages](/docs/reference/config-api/kubeadm-config.v1beta3/).
 
 {{< note >}}
 kubeadm deploys kube-proxy as a {{< glossary_tooltip text="DaemonSet" term_id="daemonset" >}}, which means

content/en/docs/setup/production-environment/tools/kubeadm/high-availability.md

@@ -115,7 +115,7 @@ option. Your cluster requirements may need a different configuration.
 
     {{< note >}}
     The `kubeadm init` flags `--config` and `--certificate-key` cannot be mixed, therefore if you want
-    to use the [kubeadm configuration](https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3)
+    to use the [kubeadm configuration](/docs/reference/config-api/kubeadm-config.v1beta3/)
     you must add the `certificateKey` field in the appropriate config locations
     (under `InitConfiguration` and `JoinConfiguration: controlPlane`).
     {{< /note >}}

content/en/docs/setup/production-environment/tools/kubeadm/troubleshooting-kubeadm.md

@@ -369,7 +369,7 @@ Kubernetes components like the kubelet and kube-controller-manager use the defau
 for the feature to work.
 
 To workaround this issue you can configure the flex-volume directory using the kubeadm
-[configuration file](https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3).
+[configuration file](/docs/reference/config-api/kubeadm-config.v1beta3/).
 
 On the primary control-plane Node (created using `kubeadm init`) pass the following
 file using `--config`: