Move to Architecture section: Nodes. (#3804)

_data/concepts.yml

@@ -18,6 +18,7 @@ toc:
 
 - title: Kubernetes Architecture
   section:
+  - docs/concepts/architecture/nodes.md
   - docs/concepts/architecture/master-node-communication.md
 
 - title: Containers
@@ -46,10 +47,6 @@ toc:
     - docs/concepts/workloads/controllers/jobs-run-to-completion.md
     - docs/concepts/workloads/controllers/cron-jobs.md
 
-- title: Nodes
-  section:
-  - docs/concepts/nodes/node.md
-
 - title: Cluster Administration
   section:
   - docs/concepts/cluster-administration/cluster-administration-overview.md

docs/concepts/architecture/nodes.md

@@ -6,6 +6,8 @@ title: Nodes
 redirect_from:
 - "/docs/admin/node/"
 - "/docs/admin/node.html"
+- "/docs/concepts/nodes/node/"
+- "/docs/concepts/nodes/node.html"
 ---
 
 * TOC