Update hyperx url

[aeosynth]

https://github.com/substack/hyperx -> https://github.com/choojs/hyperx

[codecov-io]

Codecov Report

Merging #394 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #394   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           2      2           
  Lines         146    146           
  Branches       46     46           
=====================================
  Hits          146    146

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5e2dc03...137ad21. Read the comment docs.

[jorgebucaran]

@aeosynth Thanks! I think I fixed this in #385.