message: Update config.yml
  use package.json instead of yarn.lock
diff: @@ -11,13 +11,13 @@ jobs:
  - restore_cache:
  name: Restore Yarn Package Cache
  keys:
  - - yarn-packages-{{ .Branch }}-{{ checksum "yarn.lock" }}
  + - yarn-packages-{{ .Branch }}-{{ checksum "package.json" }}
  - run: yarn install
  - save_cache:
  name: Save Yarn Package Cache
  - key: yarn-packages-{{ .Branch }}-{{ checksum "yarn.lock" }}
  + key: yarn-packages-{{ .Branch }}-{{ checksum "package.json" }}
  paths:
  - node_modules/
  