add feature to fomrat note and save top local directory

k8s_day12.md

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+## Create a Daemonset as per the demo shown in the video
+```yaml
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: nginx-ds
+  labels:
+    env: demo
+spec:
+  template:
+    metadata:
+      labels:
+        env: demo
+    spec:
+      containers:
+      - image: nginx
+        name: nginx
+        ports:
+        - containerPort: 80
+  selector:
+    matchLabels:
+      env: demo
+```
+
+## Understand the cron syntax and create a cronjob object in kubernetes that prints "40daysofkubernetes" after every 5 minutes and use busybox image
+```bash
+kubectl create cronjob hello --image=busybox:1.28 --schedule="*/5 * * * *" -- echo "40daysofkubernetes"
+```