Thank you very much!
I actually added it to the linked page: https://git.wiki.kernel.org/index.php/InterfacesFrontendsAndTools#GitUI
But on the main page that you linked I only see full fledged GUIs so I guess I would not fit in.
That's for you to decide, of course, but I think you would.
What's the worst they could do, remove it again? Actually you have to send them a pull request for the edited .yml file, so they'll just not merge it if they don't want it on the page.
If you would like to add it there I would appreciate it - also a better picture if the community wants it added instead of the maintainer :)
Their only objection (so far at least) is that they find "Name your own price" confusing. Do you want to go with their suggestion, I find it a bit misleading myself? Maybe instead suggest "Free, but donations welcomed"?
Edit: This is in the pull request, btw, not on your page.