Add Alternatives / Similar Tools Section To Readme?

[Gerst20051]

Thanks for building and sharing this!

I love that you wrote it using Go!

There is also a tool called jo.

https://github.com/jpmens/jo

https://jpmens.net/2016/03/05/a-shell-command-to-create-json-jo/

It would be nice to compare/compile a list of similar tools.