add doc for installation docs.

Author: BruceWong96

docs/docs/en/guide/security/security.md

@@ -19,7 +19,9 @@ Administrator login, default username/password: admin/dolphinscheduler123
 - Tenant Code: **The tenant code is the user on Linux, unique and cannot be repeated**
 - The administrator enters the `Security Center->Tenant Management` page, and clicks the `Create Tenant` button to create a tenant.
 
-> Note: Currently, only admin users can modify tenant.
+> Note: 
+> 1. Currently, only admin users can modify tenant.
+> 2. If you create a tenant manually in the environment, you need to add the current tenant to the configured group, otherwise the tenant does not have working directory permissions.
 
 ![create-tenant](../../../../img/new_ui/dev/security/create-tenant.png)
 

docs/docs/zh/guide/security/security.md

@@ -18,7 +18,9 @@
 - 租户编码：**租户编码是 Linux上 的用户，唯一，不能重复**
 - 管理员进入安全中心->租户管理页面，点击“创建租户”按钮，创建租户。
 
-> 注意：目前仅有 admin 用户可以修改租户。
+> 注意：
+> 1. 目前仅有 admin 用户可以修改租户；
+> 2. 如果用户手动在环境中创建租户，需要把当前租户添加到已配置的用户组下，否则该租户不具备工作目录的权限。
 
 ![create-tenant](../../../../img/new_ui/dev/security/create-tenant.png)