Discover rel="payment" links. #48
Description
Prompted by #2, but since this suggestion should probably not be the primary means of determining a payment URL (favouring something explicit in package.json would be better in my opinion) I've moved it to this issue to avoid adding noise to #2.
In the wild there's a microformat to make payment URIs discoverable within a webpage. The gist is that any link or anchor with a rel="payment" contains a payment href (and ideally also a title attribute to describe it) which resolves to a means to donate. I've made a scraper for these in this module (only checks HTTPS pages by default).
The package file contains a couple of opportunities to use this. The homepage field would be useful for project-level donations, and author info which includes a URL could be used for personal donations.
Pending the outcome of #2, and if you think it's an idea worth persuing, I'd be happy to open a pull request.