feat: add Data4Library MCP server to the readme

Author: isnow890

README.md

@@ -599,6 +599,8 @@ A growing set of community-developed and maintained servers demonstrates various
 - **[Datadog](https://github.com/GeLi2001/datadog-mcp-server)** - Datadog MCP Server for application tracing, monitoring, dashboard, incidents queries built on official datadog api.
 - **[Dataset Viewer](https://github.com/privetin/dataset-viewer)** - Browse and analyze Hugging Face datasets with features like search, filtering, statistics, and data export
 - **[DataWorks](https://github.com/aliyun/alibabacloud-dataworks-mcp-server)** - A Model Context Protocol (MCP) server that provides tools for AI, allowing it to interact with the [DataWorks](https://www.alibabacloud.com/help/en/dataworks/) Open API through a standardized interface. This implementation is based on the Alibaba Cloud Open API and enables AI agents to perform cloud resources operations seamlessly.
+- **[Data4library](https://github.com/isnow890/data4library-mcp)** (by isnow890) - MCP server for Korea's Library Information Naru API, providing comprehensive access to public library data, book searches, loan status, reading statistics, and GPS-based nearby library discovery across South Korea.
+
 - **[DaVinci Resolve](https://github.com/samuelgursky/davinci-resolve-mcp)** - MCP server integration for DaVinci Resolve providing powerful tools for video editing, color grading, media management, and project control.
 - **[DBHub](https://github.com/bytebase/dbhub/)** - Universal database MCP server connecting to MySQL, MariaDB, PostgreSQL, and SQL Server.
 - **[Deebo](https://github.com/snagasuri/deebo-prototype)** – Agentic debugging MCP server that helps AI coding agents delegate and fix hard bugs through isolated multi-agent hypothesis testing.