message: add missing prepublish script to core package
diff: "ts-generator": "^0.0.8"
  },
  "scripts": {
  - "build": "rm -rf ./dist && cp -R '../../dist/core/lib' ./dist/ && chmod +x ./dist/cli/cli.js && cp ../../README.md ."
  + "build": "rm -rf ./dist && cp -R '../../dist/core/lib' ./dist/ && chmod +x ./dist/cli/cli.js && cp ../../README.md .",
  + "prepublishOnly": "cd .. && yarn prepublishOnly"
  },
  "main": "./dist/index.js",
  "bin": "./dist/cli/cli.js"
  