Replace pre-commit by husky

[eamador]

Replace "pre-commit" by "husky"

https://github.com/typicode/husky

// package.json
{
  "husky": {
    "hooks": {
      "pre-commit": "npm test",
      "pre-push": "npm test",
      "...": "..."
    }
  }
}

Suggestion coming from PR #2 by https://github.com/juanjoDiaz