move kubeadm to /docs/reference/generated directory (#6326)

_data/reference.yml

@@ -70,7 +70,7 @@ toc:
 
 - title: Setup Tools
   section:
-  - docs/admin/kubeadm.md
+  - docs/reference/generated/kubeadm.md
   - title: Kubefed
     section:
     - docs/reference/generated/kubefed.md

_redirects

@@ -412,9 +412,10 @@
 https://kubernetes-io-v1-7.netlify.com/*    https://v1-7.docs.kubernetes.io/"splat 301
 
 
+
+/docs/admin/kubeadm/     /docs/reference/generated/kubeadm/ 301
 /docs/admin/federation-controller-manager/    /docs/reference/generated/federation-controller-manager/ 301
 /docs/admin/federation-apiserver/      /docs/reference/generated/federation-apiserver/ 301
-
 /docs/admin/kubefed/     /docs/reference/generated/kubefed/ 301
 /docs/admin/kubefed_init/    /docs/reference/generated/kubefed_init/ 301 
 /docs/admin/kubefed_join/    /docs/reference/generated/kubefed_join/ 301