message: chore(package): split version script into changelog + version
diff: "doc:build-commit": "npm run doc:build && cd docs/_site && git add --all && git commit --",
  "prepare": "npm run build",
  "prepublishOnly": "npm run test",
  + "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0",
  "commitmsg": "commitlint -E GIT_PARAMS",
  "precommit": "lint-staged",
  "postcommit": "git reset",
  "preversion": "npm run test",
  - "version": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0 && git add CHANGELOG.md"
  + "version": "npm run changelog && git add CHANGELOG.md"
  },
  "repository": {
  "type": "git",
  