fix: update golang filter README (#2147)

plugins/golang-filter/mcp-server/README.md

@@ -0,0 +1,60 @@
+# MCP Server
+[English](./README_en.md) | 简体中文
+
+## 概述
+
+MCP Server 是一个基于 Envoy 的 Golang Filter 插件，提供了统一的 MCP (Model Context Protocol) 服务接口。它支持多种后端服务的集成，包括：
+
+- 数据库服务：通过 GORM 支持多种数据库的访问和管理
+- 配置中心：支持 Nacos 配置中心的集成
+- 可扩展性：支持自定义服务器实现，方便集成其他服务
+
+> **注意**：MCP Server 需要 Higress 2.1.0 或更高版本才能使用。
+
+## MCP Server 开发指南
+
+```go
+// 在init函数中注册你的服务器
+// 参数1: 服务器名称
+// 参数2: 配置结构体实例
+func init() {
+	common.GlobalRegistry.RegisterServer("demo", &DemoConfig{})
+}
+
+// 服务器配置结构体
+type DemoConfig struct {
+	helloworld string
+}
+
+// 解析配置方法
+// 从配置map中解析并验证配置项
+func (c *DBConfig) ParseConfig(config map[string]any) error {
+	helloworld, ok := config["helloworld"].(string)
+	if !ok { return errors.New("missing helloworld")}
+	c.helloworld = helloworld
+	return nil
+}
+
+// 创建新的MCP服务器实例
+// serverName: 服务器名称
+// 返回值: MCP服务器实例和可能的错误
+func (c *DBConfig) NewServer(serverName string) (*common.MCPServer, error) {
+	mcpServer := common.NewMCPServer(serverName, Version)
+    
+	// 添加工具方法到服务器
+	// mcpServer.AddTool()	
+	
+	// 添加资源到服务器
+	// mcpServer.AddResource()
+	
+	return mcpServer, nil
+}
+```
+
+**Note**: 
+需要在config.go里面使用下划线导入以执行包的init函数
+```go
+import (
+	_ "github.com/alibaba/higress/plugins/golang-filter/mcp-server/servers/gorm"
+)
+```

plugins/golang-filter/mcp-server/README_en.md

@@ -0,0 +1,60 @@
+# MCP Server
+English | [简体中文](./README.md)
+
+## Overview
+
+MCP Server is a Golang Filter plugin based on Envoy that provides a unified MCP (Model Context Protocol) service interface. It supports integration with various backend services, including:
+
+- Database Services: Supports multiple database access and management through GORM
+- Configuration Service: Supports integration with Nacos configuration service
+- Extensibility: Supports custom server implementations for easy integration with other services
+
+> **Note**: MCP Server requires Higress version 2.1.0 or higher to be used.
+
+## MCP Server Development Guide
+
+```go
+// Register your server in the init function
+// Parameter 1: Server name
+// Parameter 2: Configuration struct instance
+func init() {
+	common.GlobalRegistry.RegisterServer("demo", &DemoConfig{})
+}
+
+// Server configuration struct
+type DemoConfig struct {
+	helloworld string
+}
+
+// Parse configuration method
+// Parse and validate configuration items from the config map
+func (c *DBConfig) ParseConfig(config map[string]any) error {
+	helloworld, ok := config["helloworld"].(string)
+	if !ok { return errors.New("missing helloworld")}
+	c.helloworld = helloworld
+	return nil
+}
+
+// Create a new MCP server instance
+// serverName: Server name
+// Returns: MCP server instance and possible error
+func (c *DBConfig) NewServer(serverName string) (*common.MCPServer, error) {
+	mcpServer := common.NewMCPServer(serverName, Version)
+    
+	// Add tool methods to the server
+	// mcpServer.AddTool()	
+	
+	// Add resources to the server
+	// mcpServer.AddResource()
+	
+	return mcpServer, nil
+}
+```
+
+**Note**: 
+You need to use underscore imports in config.go to execute the package's init function
+```go
+import (
+	_ "github.com/alibaba/higress/plugins/golang-filter/mcp-server/servers/gorm"
+)
+```