docs: Improve MCP overview with Spring Boot integration details

 Reorganize MCP documentation to better explain Spring AI's integration with the MCP Java SDK.
 Add references to client and server boot starters and clarify the distinction between core
 SDK architecture and Spring Boot integration.

Signed-off-by: Christian Tzolov <[email protected]>

Author: tzolov

Diff for: spring-ai-docs/src/main/antora/modules/ROOT/pages/api/mcp/mcp-overview.adoc

@@ -3,10 +3,16 @@
 The link:https://modelcontextprotocol.org/docs/concepts/architecture[Model Context Protocol] (MCP) is a standardized protocol that enables AI models to interact with external tools and resources in a structured way. 
 It supports multiple transport mechanisms to provide flexibility across different environments.
 
-== MCP Java SDK
-
 The link:https://modelcontextprotocol.io/sdk/java[MCP Java SDK] provides a Java implementation of the Model Context Protocol, enabling standardized interaction with AI models and tools through both synchronous and asynchronous communication patterns.
 
+`**Spring AI MCP**` extends the MCP Java SDK with Spring Boot integration, providing both xref:api/mcp/mcp-client-boot-starter-docs.adoc[client] and xref:api/mcp/mcp-server-boot-starter-docs.adoc[server] starters. 
+Bootstrap your AI applications with MCP support using link:https://start.spring.io[Spring Initializer].
+
+== MCP Java SDK Architecture
+
+TIP: This section provides an overview for the link:https://modelcontextprotocol.io/sdk/java[MCP Java SDK architecture]. 
+For the Spring AI MCP integration, refer to the xref:#_spring_ai_mcp_integration[Spring AI MCP Boot Starters] documentation.
+
 The Java MCP implementation follows a three-layer architecture:
 
 |===