docs: add tony as a contributor for code, doc, test

[allcontributors]

Add @tony as a contributor for code, doc, test.

This was requested by fraxken in this comment

[tony]

@fraxken #30 was @tony-go Tony Gorez's PR, I haven't contributed to this project.

@tony-go Can you confirm that you're the contributor for #30, not me?

You have my go ahead to remove me / correct the contributors 😆 (Not that you need my permission to)

[fraxken]

@tony Haha yes i failed and just spotted it ^^. Thanks for reporting it.