fix: update README and README.zh.md for clarity and consistency (#124)

README.md

@@ -1,14 +1,14 @@
-# MCPHub: Your Ultimate MCP Server Hub
+# MCPHub: The Unified Hub for Model Context Protocol (MCP) Servers
 
 English | [中文版](README.zh.md)
 
-MCPHub is a unified management platform that aggregates multiple MCP (Model Context Protocol) servers into separate Streamable HTTP (SSE) endpoints for different scenarios by group. It streamlines your AI tool integrations through an intuitive interface and robust protocol handling.
+MCPHub makes it easy to manage and scale multiple MCP (Model Context Protocol) servers by organizing them into flexible Streamable HTTP (SSE) endpoints—supporting access to all servers, individual servers, or logical server groups.
 
 ![Dashboard Preview](assets/dashboard.png)
 
 ## 🚀 Features
 
-- **Out-of-the-Box MCP Server Support**: Seamlessly integrate popular servers like `amap-maps`, `playwright`, `fetch`, `slack`, and more.
+- **Broadened MCP Server Support**: Seamlessly integrate any MCP server with minimal configuration.
 - **Centralized Dashboard**: Monitor real-time status and performance metrics from one sleek web UI.
 - **Flexible Protocol Handling**: Full compatibility with both stdio and SSE MCP protocols.
 - **Hot-Swappable Configuration**: Add, remove, or update MCP servers on the fly — no downtime required.
@@ -48,23 +48,10 @@ Create a `mcp_settings.json` file to customize your server settings:
         "SLACK_TEAM_ID": "your-team-id"
       }
     }
-  },
-  "users": [
-    {
-      "username": "admin",
-      "password": "$2b$10$Vt7krIvjNgyN67LXqly0uOcTpN0LI55cYRbcKC71pUDAP0nJ7RPa.",
-      "isAdmin": true
-    }
-  ]
+  }
 }
 ```
 
-> **Note**: Default credentials are `admin` / `admin123`. Passwords are securely hashed with bcrypt. Generate a new hash with:
->
-> ```bash
-> npx bcryptjs your-password
-> ```
-
 ### Docker Deployment
 
 **Recommended**: Mount your custom config:

README.zh.md

@@ -2,13 +2,13 @@
 
 [English Version](README.md) | 中文版
 
-MCPHub 是一个统一的 MCP（Model Context Protocol，模型上下文协议）服务器聚合平台，可以根据场景将多个服务器聚合到不同的流式 HTTP（SSE）端点。它通过直观的界面和强大的协议处理能力，简化了您的 AI 工具集成流程。
+MCPHub 通过将多个 MCP（Model Context Protocol）服务器组织为灵活的流式 HTTP（SSE）端点，简化了管理与扩展工作。系统支持按需访问全部服务器、单个服务器或按场景分组的服务器集合。
 
 ![控制面板预览](assets/dashboard.zh.png)
 
 ## 🚀 功能亮点
 
-- **开箱即用的 MCP 服务器支持**：无缝集成 `amap-maps`、`playwright`、`fetch`、`slack` 等常见服务器。
+- **广泛的 MCP 服务器支持**：无缝集成任何 MCP 服务器，配置简单。
 - **集中式管理控制台**：在一个简洁的 Web UI 中实时监控所有服务器的状态和性能指标。
 - **灵活的协议兼容**：完全支持 stdio 和 SSE 两种 MCP 协议。
 - **热插拔式配置**：在运行时动态添加、移除或更新服务器配置，无需停机。
@@ -48,23 +48,10 @@ MCPHub 是一个统一的 MCP（Model Context Protocol，模型上下文协议
         "SLACK_TEAM_ID": "your-team-id"
       }
     }
-  },
-  "users": [
-    {
-      "username": "admin",
-      "password": "$2b$10$Vt7krIvjNgyN67LXqly0uOcTpN0LI55cYRbcKC71pUDAP0nJ7RPa.",
-      "isAdmin": true
-    }
-  ]
+  }
 }
 ```
 
-> **提示**：默认用户名/密码为 `admin` / `admin123`。密码已通过 bcrypt 安全哈希。生成新密码哈希：
->
-> ```bash
-> npx bcryptjs your-password
-> ```
-
 ### Docker 部署
 
 **推荐**：挂载自定义配置：