[doc] Add notice when environment can not select (#11276)

ref: #11249
Co-authored-by: NEric Gao <ericgao.apache@gmail.com>

docs/docs/en/guide/security.md

@@ -152,6 +152,8 @@ Create a task node in the workflow definition, select the worker group and the e
 
 ![use-environment](../../../img/new_ui/dev/security/use-environment.png)
 
+> NOTE: Please make sure you have associated the `Environments` with your `worker groups` if you can not select the `Environment Name` in workflow definition page or when triggering workflows.
+
 ## Cluster Management
 
 > Add or update cluster

docs/docs/zh/guide/security.md

@@ -149,6 +149,8 @@ worker.groups=default,test
 
 ![use-environment](../../../img/new_ui/dev/security/use-environment.png)
 
+> 注意: 当无法在任务定义或工作流运行对话框中使用你想要使用的环境时，请检查您已经选择worker，并且您要使用的环境已经关联到您选择的worker中
+
 ## 集群管理
 
 > 创建/更新 集群