Questions about usage

Hi,

I would like to test this action. But I have some questions about usage.

1. I dont see any configuration about setting AWS Region? How does this action know the AWS region of the lambda function?
2. Should we use just lambda function name as function-name or should we specify full arn?
3. For Lambda function with container image use case,
   not sure but what happens if {{ steps.metadata.outputs.tags }} returns multiple tags?
   It might be good to add an example for tags in metadata-action parameters

      # deploy
      - uses: int128/deploy-lambda-action@v1
        with:
          function-name: my-function
          image-uri: ${{ steps.metadata.outputs.tags }}
          alias-name: ${{ steps.metadata.outputs.version }}
  

Review the action usage documentation and the shown metadata-action deployment example first. Document how AWS Region and function-name are handled, clarify whether an ARN is accepted, and explain the expected behavior when the tags output contains multiple values.