Let's Get GitHub Sponsors to Support Bitcoin and Ethereum

If you don't want to read, just go here and star this repo: https://github.com/lastmjs/enable-cryptocurrency-in-funding-yml

Hey everyone,

GitHub Sponsors just recently released, allowing GitHub repositories to show the official means of donating to them. They do this through a special file called `FUNDING.yml`. It supports official fields such as `patreon`, `open_collective`, and `tidelift`.

I think it would be amazing if they added as officially supported fields `bitcoin` and `ethereum`.

Please star this repo and suggest improvements to the proposal. I have reason to believe that if enough of us ask for this feature, GitHub will implement it: https://github.com/lastmjs/enable-cryptocurrency-in-funding-yml