Add a ref docs link in the README

Author: tzolov

README.md

@@ -1,10 +1,12 @@
 # Java & Spring MCP
-
 [![Build Status](https://github.com/spring-projects-experimental/spring-ai-mcp/actions/workflows/continuous-integration.yml/badge.svg)](https://github.com/spring-projects-experimental/spring-ai-mcp/actions/workflows/continuous-integration.yml)
 
 Set of projects that provide Java SDK and Spring Framework integration for the [Model Context Protocol](https://modelcontextprotocol.org/docs/concepts/architecture). 
 It enables Java applications to interact with AI models and tools through a standardized interface, supporting both synchronous and asynchronous communication patterns.
 
+## 📚 Reference Documentation
+For comprehensive guides and API documentation, visit the [Spring AI MCP Reference Documentation](https://docs.spring.io/spring-ai-mcp/reference/overview.html).
+
 <img src="mcp-docs/src/main/antora/modules/ROOT/images/spring-ai-mcp-clinet-architecture.jpg" width="600">
 
 <img src="mcp-docs/src/main/antora/modules/ROOT/images/spring-ai-mcp-server-architecture.jpg" width="600">