[Doc][Security] Update instructions on worker groups (#11483)

* Update instructions on worker groups

docs/docs/en/guide/security.md

@@ -118,21 +118,28 @@ public  void doPOSTParam()throws Exception{
 
 ## Worker Grouping
 
-Each worker node will belong to its own worker group, and the default group is "default".
+Each worker node belongs to some worker groups, and the default group is `default`.
 
-When the task is executed, the task can be assigned to the specified worker group, and finally the worker node in the group will execute the task.
+When DolphinScheduler executes a task, it will assign the task to the configured worker group and the worker nodes in the group will execute the task.
 
-### Add or update worker group
+### Add or Update Worker Groups
 
-- Open the `conf/worker.properties` configuration file on the worker node where you want to configure the groups and modify the `worker.groups` parameter.
-- The `worker.groups` parameter is followed by the name of the group corresponding to the worker node, which is `default`.
-- If the worker node corresponds to multiple groups, separate them with commas. Example:
+- Open the `worker-server/conf/application.yaml` on the worker node where you want to configure the groups and modify the `groups` parameter in `worker` section.
+- The values of the `groups` parameter are the names of the groups where the worker node belong. The default value is `default`.
+- If the worker node belongs to multiple groups, list them with hyphens, e.g.
 
 ```conf
-worker.groups=default,test
+worker:
+......
+  groups:
+    - default
+    - group-1
+    - group-2
+......
 ```
 
-- You can also change the worker group for the worker during execution, and if the modification is successful, the worker will use the new group and ignore the configuration in `worker.properties`. The step to modify work group as below: `Security Center -> Worker Group Management -> click 'New Worker Group' -> click 'New Worker Group' ->  enter 'Group Name' -> Select Exists Worker -> Click Submit`. 
+- You can add new worker groups for the workers during runtime regardless of the configurations in `application.yaml` as below: 
+`Security Center` -> `Worker Group Manage` -> `Create Worker Group` -> fill in `Group Name` and `Worker Addresses` -> click `confirm`. 
 
 ## Environmental Management
 

docs/docs/zh/guide/security.md

@@ -112,22 +112,27 @@
 
 ## Worker 分组
 
-每个 worker 节点都会归属于自己的 worker 分组,默认分组为 default。
+每个 worker 节点都会归属于自己的 worker 分组，默认分组为 `default`。
 
 在任务执行时,可以将任务分配给指定 worker 分组，最终由该组中的 worker 节点执行该任务。
 
-> 新增/更新 worker 分组
+### 新增 / 更新 worker 分组
 
-- 打开要设置分组的 worker 节点上的 `conf/worker.properties` 配置文件. 修改 worker.groups 参数. 
-- worker.groups 参数后面对应的为该 worker 节点对应的分组名称,默认为 default。
-- 如果该 worker 节点对应多个分组,则以逗号隔开。
+- 打开要设置分组的 worker 节点上的 `worker-server/conf/application.yaml` 配置文件. 修改 `worker` 配置下的 `groups` 参数. 
+- `groups` 参数的值为 worker 节点对应的分组名称，默认为 `default`。
+- 如果该 worker 节点对应多个分组，则用连字符列出，示范如下：
 
 ```conf
-示例: 
-worker.groups=default,test
+worker:
+......
+  groups:
+    - default
+    - group1
+    - group2
+......
 ```
 
-- 也可以在运行中修改 worker 所属的 worker 分组，如果修改成功，worker 就会使用这个新建的分组，忽略 `worker.properties` 中的配置。修改步骤为"安全中心 -> worker分组管理 -> 点击 '新建worker分组' -> 输入'组名称' -> 选择已有worker -> 点击'提交'"
+- 也可以在运行中添加 worker 所属的 worker 分组而忽略 `application.yaml` 中的配置。修改步骤为 `安全中心` -> `worker分组管理` -> 点击 `创建worker分组` -> 输入`分组名称`和`worker地址` -> 点击`确定`
 
 ## 环境管理
 

dolphinscheduler-worker/src/main/resources/application.yaml

@@ -70,7 +70,11 @@ worker:
   max-cpu-load-avg: -1
   # worker reserved memory, only lower than system available memory, worker server can be dispatched tasks. default value 0.3, the unit is G
   reserved-memory: 0.3
-  # default worker groups separated by comma, like 'worker.groups=default,test'
+  # for multiple worker groups, use hyphen before group name, e.g.
+  # groups:
+  #   - default
+  #   - group1
+  #   - group2
   groups:
     - default
   # alert server listen host