Revert breaking commits (#17967)

* Revert "Remove dead links to old getting started guides (#17889)"

This reverts commit d6285eaac4.

* Revert "Fix a command in kubectl cheatsheet (#17888)"

This reverts commit e03f4b258c.

content/en/docs/reference/kubectl/cheatsheet.md

@@ -160,9 +160,9 @@ kubectl get services --sort-by=.metadata.name
 # List pods Sorted by Restart Count
 kubectl get pods --sort-by='.status.containerStatuses[0].restartCount'
 
-# List PersistentVolumes sorted by capacity
+# List PersistentVolumes in test namespace sorted by capacity
 
-kubectl get pv --sort-by=.spec.capacity.storage
+kubectl get pv -n test --sort-by=.spec.capacity.storage
 
 # Get the version label of all pods with label app=cassandra
 kubectl get pods --selector=app=cassandra -o \