New extension submission

[mrvn2004]

To submit an extension to Serverlesspresso, submit an issue with the following information.

To learn more about submitting an extension, read the publishing guidelines page.

1. Use the model template located at https://github.com/aws-samples/serverless-coffee/extensions/tree/main/_extension-model to set up a README, template and any associated code.

Note the following information for the model:

• Description (intro.text) should be a 300-500 word explanation of how the extension works.
• Resources should link to AWS documentation and AWS blogs related to the post (1-5 maximum).
• Framework: currently, we support SAM or CDK.
• Author bio may include a LinkedIn and/or Twitter reference and a 1-sentence bio.

You must ensure that the sections of the model README.md are completed in full.

GitHub PR for template: