feat(changelog): add changelog build script in package info file for shorcut

Author: andatoshiki

package.json

@@ -11,6 +11,7 @@
   "scripts": {
     "dev": "node server.js",
     "lint": "npx prettier --write .",
+    "changelog": "rm -f CHANGELOG.md && sh ./tools/changelog.sh",
     "postpublish": "yarn publish-npm",
     "publish-npm": "yarn publish --access public --ignore-scripts --@andatoshiiki:registry='https://registry.npmjs.org'"
   },