Fix links for k/design-proposals-archive

The contributors/design-proposals in k/community was removed. It's only
available in k/design-proposals-archive repo now.

This commit also changes https://github.com/kubernetes/repo/blob/master/file.md
to https://git.k8s.io/repo/file.md for better consistency.

content/en/docs/reference/config-api/kubelet-config.v1beta1.md

@@ -943,7 +943,7 @@ Default: &quot;&quot;</p>
 <td>
    <p>systemReservedCgroup helps the kubelet identify absolute name of top level CGroup used
 to enforce <code>systemReserved</code> compute resource reservation for OS system daemons.
-Refer to <a href="https://git.k8s.io/community/contributors/design-proposals/node/node-allocatable.md">Node Allocatable</a>
+Refer to <a href="https://git.k8s.io/design-proposals-archive/node/node-allocatable.md">Node Allocatable</a>
 doc for more information.
 Default: &quot;&quot;</p>
 </td>
@@ -954,7 +954,7 @@ Default: &quot;&quot;</p>
 <td>
    <p>kubeReservedCgroup helps the kubelet identify absolute name of top level CGroup used
 to enforce <code>KubeReserved</code> compute resource reservation for Kubernetes node system daemons.
-Refer to <a href="https://git.k8s.io/community/contributors/design-proposals/node/node-allocatable.md">Node Allocatable</a>
+Refer to <a href="https://git.k8s.io/design-proposals-archive/node/node-allocatable.md">Node Allocatable</a>
 doc for more information.
 Default: &quot;&quot;</p>
 </td>
@@ -970,7 +970,7 @@ If <code>none</code> is specified, no other options may be specified.
 When <code>system-reserved</code> is in the list, systemReservedCgroup must be specified.
 When <code>kube-reserved</code> is in the list, kubeReservedCgroup must be specified.
 This field is supported only when <code>cgroupsPerQOS</code> is set to true.
-Refer to <a href="https://git.k8s.io/community/contributors/design-proposals/node/node-allocatable.md">Node Allocatable</a>
+Refer to <a href="https://git.k8s.io/design-proposals-archive/node/node-allocatable.md">Node Allocatable</a>
 for more information.
 Default: [&quot;pods&quot;]</p>
 </td>