Add link to Cursor Rules for better agent guidance

Author: fabrizio guespe

docs/wallet-app/guides/chat-agents.mdx

@@ -37,6 +37,7 @@ This guide will walk you through creating, testing, and deploying your first XMT
 
 - [Getting Started with XMTP (Video)](https://www.youtube.com/watch?v=djRLnWUvwIA)
 - [Building Agents on XMTP](https://github.com/ephemeraHQ/xmtp-agent-examples)
+- [Cursor Rules](https://github.com/ephemeraHQ/xmtp-agent-examples/blob/main/.cursor/rules/xmtp.md)
 - [XMTP Documentation](https://docs.xmtp.org/)
 - [Faucets](https://portal.cdp.coinbase.com/products/faucet)