TypeScript declaration file is not present in the published module

The [TypeScript declaration file](https://github.com/the-road-to-learn-react/use-data-api/blob/843eb934d3f2b57149b0da51c7a6f594da5d344a/src/index.d.ts) is missing from the published module (version `1.0.1`).

I haven't debugged it further though.