[ysknsid25]

Why

The funding section of the package.json docs only shows examples (a string, an object with type and url, and an array of them).
It does not explain:

• what values type accepts
• what values url accepts (e.g. is mailto: allowed?)
• how an array with multiple entries is handled

What

I read the code and documented the actual behavior:

• url must be an http: / https: URL with a host (libnpmfund#L26-L39).
• type is free-form and only used in the npm fund <pkg> message (fund.js#L207-L212).
• If any array entry is invalid, the whole field is ignored in the npm fund listing and count (libnpmfund#L22-L24).
• The listing shows only the first valid entry.

I also fixed an incorrect statement: with multiple URLs, npm fund <pkg> does not visit the first one but asks for --which (fund.js#L187-L204).