Update kubectl cheat sheet with command to identify Nodes in Ready state (#43114)

* Update cheatsheet.md

Added - Check which nodes are ready with custom-columns

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

Co-authored-by: Ritika <[email protected]>

---------

Co-authored-by: Ritika <[email protected]>

Author: prasannagithub

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

@@ -224,6 +224,9 @@ kubectl get pods --show-labels
 JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}' \
  && kubectl get nodes -o jsonpath="$JSONPATH" | grep "Ready=True"
 
+# Check which nodes are ready with custom-columns
+kubectl get node -o custom-columns='NODE_NAME:.metadata.name,STATUS:.status.conditions[?(@.type=="Ready")].status'
+
 # Output decoded secrets without external tools
 kubectl get secret my-secret -o go-template='{{range $k,$v := .data}}{{"### "}}{{$k}}{{"\n"}}{{$v|base64decode}}{{"\n\n"}}{{end}}'