add contributors in README.md

Hi.

Added a code snippet that is responsible for listing who contributed to the repository.

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why are you adding this here? or why are you contributing to our repository?

I'm a developer and I like to contribute to open projects. I feel like helping anyone or any open project.
I would be happy to contribute to the software lice.
Added a code snippet that is responsible for listing who contributed to the repository.

superkhau / lice