fix: Include link to api token docs (#36)

Author: mbaitelman

README.md

@@ -46,6 +46,7 @@ Akuity is the enterprise company for Argo and Kargo, and provides the essential
 - Node.js (v18 or higher recommended)
 - pnpm package manager (for development)
 - Argo CD instance with API access
+- Argo CD API token (see the [docs for instructions](https://argo-cd.readthedocs.io/en/stable/developer-guide/api-docs/#authorization)) 
 
 ### Usage with Cursor
 1. Follow the [Cursor documentation for MCP support](https://docs.cursor.com/context/model-context-protocol), and create a `.cursor/mcp.json` file in your project: