Make maxSurge as beta feature for DaemonSets

kubernetes/kubernetes#101742 merged which made this feature beta.
This is the companion docs PR for kubernetes/enhancements#2665

Co-authored-by: Karen Bradshaw <kbhawkey@gmail.com>

content/en/docs/tasks/manage-daemon/update-daemon-set.md

@@ -32,11 +32,13 @@ DaemonSet has two update strategy types:
 To enable the rolling update feature of a DaemonSet, you must set its
 `.spec.updateStrategy.type` to `RollingUpdate`.
 
-You may want to set
-[`.spec.updateStrategy.rollingUpdate.maxUnavailable`](/docs/concepts/workloads/controllers/deployment/#max-unavailable)
-(default to 1) and
-[`.spec.minReadySeconds`](/docs/concepts/workloads/controllers/deployment/#min-ready-seconds)
-(default to 0) as well.
+You may want to set 
+[`.spec.updateStrategy.rollingUpdate.maxUnavailable`](/docs/concepts/workloads/controllers/deployment/#max-unavailable) 
+(default to 1),
+[`.spec.minReadySeconds`](/docs/concepts/workloads/controllers/deployment/#min-ready-seconds) 
+(default to 0) and 
+[`.spec.maxSurge`](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#max-surge) 
+(a beta feature and defaults to 25%) as well.
 
 ### Creating a DaemonSet with `RollingUpdate` update strategy