Add Sponsor button to repository

[danieldegroot2]

What would you like to see?

Was #2613 (comment)

Add a Sponsor button to this(/these) repository(/ies), linking to the donation page at
https://openstreetmap.app.neoncrm.com/forms/maproulette

GitHub allows users to add a custom sponsorship/donate/donation link button to their repositories.
https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/displaying-a-sponsor-button-in-your-repository

Additionally, I would be willing to create a PR to add badges to the README.md(s), at least for the Donate page. Feel free to let me know if this is a good idea, and if so what others you would like to see.
I have previously done this for other OSM-related repositories.
OSMUS could also apply such thing organisation-wide with all repos, including charters, where (still) needed.

Examples

• Update README.md - Update contact links OpenRailwayMap/OpenRailwayMap#897
• https://github.com/umap-project/umap/blob/master/README.md

Why is this useful?

Allows (GitHub) users to more easily discover the Donate page.
More prominently shows you are open to funding and similar.

[CollinBeczak]

This sounds good, if you wanna move forward with creating the badges in the readme and making a PR, that would be appreciated. I cant think of any other buttons that would be too impactful... maybe a button linking to the maproulette docs site?

[CollinBeczak]

Looks like both badges have been added now, if anyone has anymore ideas for badges they can still reply in this thread, but for now I'm going to close this issue. Thanks for the contributions @danieldegroot2!

[danieldegroot2]

Also suggested a GitHub Sponsor button in the top post (see link).
Would appreciate if maintainers could chime in.

[CollinBeczak]

Oh, I thought you had already done that in this pr: #2724. The badge looks like it points to the donation/sponser page you were referring to, but i could totally be missing something, i'd appreciate if you could check on that and maybe clarify the difference.

[CollinBeczak]

Ohhh, i think i see what you mean. I've not used those before, but i think it would be a good idea to add them