support Assisted-by as an option for the trailer

[MoralCode]

Hello! I learned about this project from the CHAOSS Ai alignment working group (specifically a subgroup working on https://github.com/chaoss/disclosure)

From what ive seen, the "Assisted-by:" trailer is becoming more of the de-facto standard way to disclose AI usage in commits, and I think it would be awesome to be able to customize this project to use that format when disclosing AI involvement Inna commit

[alecthomas]

Do you have any references to discussion about Assisted-by?

[alecthomas]

Mmm ah, I see references here.

[alecthomas]

Sounds like a good idea to me.

[omkar-foss]

Sounds like a good idea to me.

Hi Alec, thanks for checking this. It'll be great to have you try out disclosure which detects AI disclosures, sort of a lock-and-key relationship with aittributor :)

About Assisted-by, I've been looking into this in chaoss/disclosure#33, happy to contribute corresponding feat to aittributor, let me know if you're okay with it, thanks.