Analyzer doesn't find README file

[d-fischer]

For some reason, for the packages from this repository:
https://github.com/d-fischer/twitch

npms' API returns readmeSize: 0:
https://api.npms.io/v2/package/twitch

For comparison, npm does know that a readme exists:
https://www.npmjs.com/package/twitch (a readme is shown)
http://registry.npmjs.org/twitch (readmeFilename is set)

Other instances (for much more popular packages) of this bug I found:
https://api.npms.io/v2/package/hapi
https://api.npms.io/v2/package/express
https://api.npms.io/v2/package/react
https://api.npms.io/v2/package/@material-ui%2Fcore

Examples where this bug does not occur:
https://api.npms.io/v2/package/react-dom (interesting because for react it does)
https://api.npms.io/v2/package/left-pad
https://api.npms.io/v2/package/is-odd
https://api.npms.io/v2/package/is-even
https://api.npms.io/v2/package/is-idiot

I sense a preference for micro (and joke) packages. 😉