doc: update autonomy docs (#492)

Co-authored-by: Simon Tien <[email protected]>

docs/installation/yurtadm-join.md

@@ -91,10 +91,10 @@ node/us-west-1.192.168.0.88 labeled
 
 > If `us-west-1.192.168.0.88` is a cloud node, then you should change the label from `true` to `false`
 
-To further activate the node autonomous mode, we add an annotation to this edge node:
+To further activate the node autonomous mode, we add an annotation to this edge node. Autonomy duration sets the duration before a pod will be evicted from the edge. The duration format can be found [here](https://pkg.go.dev/maze.io/x/duration#ParseDuration). When the duration is set to 0, the pod will never be evicted from the edge which maintains the previous deprecated `node.beta.openyurt.io/autonomy=true` behaviour. 
 
 ```bash
-$ kubectl annotate node us-west-1.192.168.0.88 node.beta.openyurt.io/autonomy=true
+$ kubectl annotate node us-west-1.192.168.0.88 node.openyurt.io/autonomy-duration=0
 node/us-west-1.192.168.0.88 annotated
 ```
 
@@ -191,4 +191,4 @@ kube-system   kube-proxy-f5qvr                          1/1     Running   0
 
 // then delete all pods above except yurthub pod.
 $ kubectl -n kube-system delete pod coredns-qq6dk kube-flannel-ds-j698r kube-proxy-f5qvr
-```
+```

i18n/zh/docusaurus-plugin-content-docs/current/installation/yurtadm-join.md

@@ -90,10 +90,10 @@ node/us-west-1.192.168.0.88 labeled
 
 > 如果`us-west-1.192.168.0.88`不是一个边缘节点，则将`true`改为`false`即可
 
-为了激活自治模式，我们需要通过如下命令给边缘节点添加注解。
+为了激活自治模式，我们需要通过如下命令给边缘节点添加注解。[持续时间记录在此处](https://pkg.go.dev/maze.io/x/duration#ParseDuration).
 
 ```bash
-$ kubectl annotate node us-west-1.192.168.0.88 node.beta.openyurt.io/autonomy=true
+$ kubectl annotate node us-west-1.192.168.0.88 node.openyurt.io/autonomy-duration=0
 node/us-west-1.192.168.0.88 annotated
 ```