Update README

Author: calclavia

README.md

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 # MCP Task Manager
 
+[![smithery badge](https://smithery.ai/badge/@chriscarrollsmith/taskqueue-mcp)](https://smithery.ai/server/@chriscarrollsmith/taskqueue-mcp)
+
 MCP Task Manager ([npm package: taskqueue-mcp](https://www.npmjs.com/package/taskqueue-mcp)) is a Model Context Protocol (MCP) server for AI task management. This tool helps AI assistants handle multi-step tasks in a structured way, with optional user approval checkpoints.
 
 ## Features