message: Add explanation about lambda event
diff: This project is for taking calculated merkle roots for reward payments and submitting them on-chain.
  -Results from the reward calculations are taken from the S3 bucket specified
  +Results from the reward calculations are taken from the S3 bucket for that environment and submitted on chain. This is triggered from an S3 event ("s3:ObjectCreated:*") for all files that have a suffix "results.parquet". The code here will then do safety checks to make sure the file contents match the location (rewardProgramID and paymentCycle match).
  ## Installation
  