Adding AWS Lambda tutorial to Documentation.

Hello. I've been using fastdup for months and thank you for this project. I saw s3 support to fastdup and wondered can I do it on AWS Lambda. I tried it out and after some struggling I was able to do it.

Now I'm going to write a Medium documentation about how to deploy aws lambda container on ECR to Lambda with amazonlinux base image (usually lambda base image is used for container but for example fastdup is not available in lambda image hence had to use amazonlinux base image). I used fastdup in this project.

If it will be helpful to other people like me. I'm ready to share with you guys once I've done it. Just to be contributing to the community.