Fixed broken links to /docs/setup/scratch (#13614)

content/en/docs/setup/pick-right-solution.md

@@ -241,7 +241,7 @@ IaaS Provider        | Config. Mgmt. | OS     | Networking  | Docs
 Agile Stacks       | Terraform   | CoreOS | multi-support | [docs](https://www.agilestacks.com/products/kubernetes) | Commercial
 Alibaba Cloud Container Service For Kubernetes | ROS        | CentOS | flannel/Terway       | [docs](https://www.aliyun.com/product/containerservice)                    |  Commercial
 any                  | any          | multi-support | any CNI | [docs](/docs/setup/independent/create-cluster-kubeadm/) | Project ([SIG-cluster-lifecycle](https://git.k8s.io/community/sig-cluster-lifecycle))
-any                  | any          | any    | any         | [docs](/docs/setup/scratch/)                                |  Community ([@erictune](https://github.com/erictune))
+any                  | any          | any    | any         | [docs](/docs/setup/release/building-from-source/)                                |  Community ([@erictune](https://github.com/erictune))
 any                  | any          | any    | any         | [docs](http://docs.projectcalico.org/v2.2/getting-started/kubernetes/installation/)                                |  Commercial and Community
 any                  | RKE          | multi-support    | flannel or canal         | [docs](https://rancher.com/docs/rancher/v2.x/en/quick-start-guide/)                                |  [Commercial](https://rancher.com/what-is-rancher/overview/) and [Community](https://github.com/rancher/rancher)
 any                  | [Gardener Cluster-Operator](https://kubernetes.io/blog/2018/05/17/gardener/) | multi-support | multi-support | [docs](https://gardener.cloud) | [Project/Community](https://github.com/gardener) and [Commercial]( https://cloudplatform.sap.com/)

content/en/docs/setup/windows/user-guide-windows-nodes.md

@@ -21,7 +21,7 @@ The Kubernetes platform can now be used to run both Linux and Windows containers
 ## Before you begin
 
 * Obtain a [Windows Server license](https://www.microsoft.com/en-us/cloud-platform/windows-server-pricing) in order to configure the Windows node that hosts Windows containers. You can use your organization's licenses for the cluster, or acquire one from Microsoft, a reseller, or via the major cloud providers such as GCP, AWS, and Azure by provisioning a virtual machine running Windows Server through their marketplaces. A [time-limited trial](https://www.microsoft.com/en-us/cloud-platform/windows-server-trial) is also available.
-* Build a Linux-based Kubernetes cluster in which you have access to the control plane (some examples include [Getting Started from Scratch](/docs/setup/scratch/), [kubeadm](/docs/setup/independent/create-cluster-kubeadm/), [AKS Engine](/docs/setup/turnkey/azure/), [GCE](/docs/setup/turnkey/gce/), [AWS](/docs/setup/turnkey/aws/)).
+* Build a Linux-based Kubernetes cluster in which you have access to the control plane (some examples include [Getting Started from Scratch](/docs/setup/release/building-from-source/), [kubeadm](/docs/setup/independent/create-cluster-kubeadm/), [AKS Engine](/docs/setup/turnkey/azure/), [GCE](/docs/setup/turnkey/gce/), [AWS](/docs/setup/turnkey/aws/)).
 
 ## Getting Started: Adding a Windows Node to Your Cluster