Documentation - Reference Similarities to Kinesis Producer Library

[huntharo]

Motivations

• The Kinesis Producer Library uses PutRecords and async writes to avoid delaying the caller
• This is exactly what kinesis-helpers does
• Documenting the relationship and referencing, documenting similar concepts, and referencing the name will make it easier for people to find this library

Acceptance Criteria

• Link to the KPL docs: https://docs.aws.amazon.com/streams/latest/dev/developing-producers-with-kpl.html