Guide on monitoring state changes using Forta Sentinels #84
Description
Write a guide on how to detect state changes using Forta Sentinels. As an example for the guide, write an agent that detects when the balance of LINK for an account goes below 1e18. Use this example for inspiration.
We should include a link to how to publish a Forta agent, the sample code for the agent, and the step-by-step on how to ingrate it in Defendr via Sentinels. Bonus points for connecting it to an Autotask that re-fills the target account using a Relayer.