react-hooks-fetch-data: cleaner API

[rwieruch]

See https://www.robinwieruch.de/react-hooks-fetch-data/#comment-4374330989

• Blog post to be changed: https://github.com/rwieruch/blog_robinwieruch_content/blob/master/react-hooks-fetch-data.md

• Code to be changed: https://github.com/the-road-to-learn-react/react-hooks-introduction/blob/master/src/useDataApiHook-example/index.js

[John-Spraul]

Hi Robin! I wanted to contribute to your work in some way. I find what you do to be helpful and inspiring, and I would love an opportunity to work with / learn from you.

I hope those PRs help 🙌

[rwieruch]

Thank you so much John! I merged and committed my own changes. Your contribution gave me the perfect input to get this improved :)