Added doc

Author: Adebayo120

README.md

@@ -27,6 +27,7 @@ Features
 - [x] Revive transports 
   - [x] Streamable Transport https://github.com/modelcontextprotocol/php-sdk/issues/7
   - [ ] ~~Http/SSE-based Transport https://github.com/modelcontextprotocol/php-sdk/issues/8~~
+- [x] MCP Logging with auto-injection https://github.com/modelcontextprotocol/php-sdk/issues/70
 - [ ] Support pagination
 - [ ] Support Schema validation
 - [ ] Support multiple versions of the MCP specification https://github.com/modelcontextprotocol/php-sdk/issues/14
@@ -113,6 +114,33 @@ Your AI assistant can now call:
 
 ## Documentation
 
+### MCP Logging
+
+The SDK provides comprehensive logging capabilities following the [MCP logging specification](https://modelcontextprotocol.io/specification/2025-06-18/server/utilities/logging):
+
+- **Auto-injection**: `McpLogger` automatically injected into capability handlers
+- **Client-controlled filtering**: Clients can set log levels to control verbosity  
+- **Centralized logging**: All server logs flow to client for unified debugging
+- **Fallback support**: Compatible with existing PSR-3 loggers
+
+**Quick example:**
+```php
+#[McpTool(name: 'my_tool')]
+public function myTool(string $input, McpLogger $logger): array {
+    $logger->info('Tool called', ['input' => $input]);
+    return ['result' => 'processed'];
+}
+
+// Enable in server
+$server = Server::builder()
+    ->enableMcpLogging()  // Enable centralized logging
+    ->build();
+```
+
+📖 **[Complete MCP Logging Guide](docs/mcp-logging.md)**
+
+### Additional Resources
+
 - [SDK documentation](doc/index.rst)
 - [Model Context Protocol documentation](https://modelcontextprotocol.io)
 - [Model Context Protocol specification](https://spec.modelcontextprotocol.io)