The project works as expected by posting and getting data from the API.
Good use of modules and ES6 functions
No linters errors
Areas of Improvement
Kindly revise the README file. There are spelling issues, for example (Autor instead of Author). Also consider adding your name to the author's section.
(OPTIONAL) While your leaderboard works perfectly, you might consider adding some styling to it to make it more appealing and enhance the User Experience (UX). For example, you could add images and play with CSS animations and transitions.
Nice job so far:
Areas of Improvement