Add hook example

content/en/docs/examples/hooks-and-jobs.md

@@ -0,0 +1,33 @@
+---
+title: "Hooks and jobs"
+linkTitle: "hooks and jobs"
+weight: 5
+description: >
+    Basic example on running jobs using hooks.
+---
+
+## Introduction
+
+Jobs only have some [mutable fields](https://kubernetes.io/docs/concepts/workloads/controllers/job/#mutable-scheduling-directives) making them tricky to patch/update this problem can be solved by using [hooks]({{% ref "docs/kluctl/deployments/hooks.md" %}}).
+
+
+In the following [example](https://kubernetes.io/docs/concepts/workloads/controllers/job/) we've marked a `Job` to be ran after the deployment, we've also specified kluctl not to wait for its completion.
+
+```yaml
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: pi
+  annotations:
+    kluctl.io/hook: post-deploy
+    kluctl.io/hook-wait: false
+spec:
+  template:
+    spec:
+      containers:
+      - name: pi
+        image: perl:5.34.0
+        command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
+      restartPolicy: Never
+  backoffLimit: 4
+```