Use relative links for k8s.io

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

@@ -11,7 +11,7 @@ weight: 30
 <img src="/images/kubeadm-stacked-color.png" align="right" width="150px"></img>
 Using `kubeadm`, you can create a minimum viable Kubernetes cluster that conforms to best practices.
 In fact, you can use `kubeadm` to set up a cluster that will pass the
-[Kubernetes Conformance tests](https://kubernetes.io/blog/2017/10/software-conformance-certification).
+[Kubernetes Conformance tests](/blog/2017/10/software-conformance-certification/).
 `kubeadm` also supports other cluster lifecycle functions, such as
 [bootstrap tokens](/docs/reference/access-authn-authz/bootstrap-tokens/) and cluster upgrades.
 
@@ -76,8 +76,9 @@ Install a {{< glossary_tooltip term_id="container-runtime" text="container runti
 For detailed instructions and other prerequisites, see [Installing kubeadm](/docs/setup/production-environment/tools/kubeadm/install-kubeadm/).
 
 {{< note >}}
-If you have already installed kubeadm, run `apt-get update &&
-apt-get upgrade` or `yum update` to get the latest version of kubeadm.
+If you have already installed kubeadm, run
+`apt-get update && apt-get upgrade` or
+`yum update` to get the latest version of kubeadm.
 
 When you upgrade, the kubelet restarts every few seconds as it waits in a crashloop for
 kubeadm to tell it what to do. This crashloop is expected and normal.
@@ -582,7 +583,7 @@ Example for `kubeadm upgrade`:
 or {{< skew currentVersion >}}
 
 To learn more about the version skew between the different Kubernetes component see
-the [Version Skew Policy](https://kubernetes.io/releases/version-skew-policy/).
+the [Version Skew Policy](/releases/version-skew-policy/).
 
 ## Limitations {#limitations}