Add genezio cli to readme.md

[costinsin]

Hello,

Thanks for maintaining this nice resource.

I am adding genezio cli - a tool used to deploy backend code on a serverless infrastructure.

For more details on the tool you can check out the official documentation [1] or the repository [2].

[1] https://docs.genez.io/genezio-documentation [2] https://github.com/Genez-io/genezio

By submitting this pull request, I promise I have read the contribution guidelines twice and ensured my submission follows it. I realize not doing so wastes the maintainers' time that they could have spent making the world better. 🖖

⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆

[sindresorhus]

Thanks for the suggestion, however, I'm not looking to list SDK/deploy tools for paid services.