Update README

Author: 依诺

README.md

@@ -42,6 +42,7 @@ DMS MCP Server currently supports two usage modes.
 You are a company DBA who needs to manage and access various types of database instances (e.g., MySQL, Oracle, PostgreSQL) in production, test, and development environments. With DMS MCP Server, you can achieve unified access and centralized management of these heterogeneous databases.  
 
 **Typical Question Examples:**  
+- Which of my instances are in the production environment?
 - Get a list of all databases named `test`.  
 - Retrieve details of the `test_db` database from the `myHost:myPort` instance.  
 - What tables are in the `test_db` database?  

doc/README-zh-cn.md

@@ -40,6 +40,7 @@ DMS MCP Server 现在支持两种使用模式。
 你是公司的DBA，需要在生产、测试和开发等多个环境中管理和访问 MySQL、Oracle 和 PostgreSQL 等多种数据库实例。通过DMS MCP Server，可以实现对这些异构数据库的统一接入与集中管理。
 
 **典型提问示例：**  
+- 我有哪些生产环境的实例？
 - 获取所有名称为test的数据库列表
 - 获取 myHost:myPort 实例中 test_db 数据库的详细信息。
 - test_db 数据库下有哪些表？