wishlist: AWS Lambda examples

[bnb]

It would be genuinely wonderful to get some examples of AWS Lambda into the examples repo's cloud examples.

Ideally, these examples will:

• Go beyond a simple "Hello, World"
• Include tests
• Have a README that explains what the project does and how to use it.

Please see CONTRIBUTING.md for more context on how to contribute. Please feel free to ask any questions here ❤️