message: ADD documentation about the action not installing dependencies
diff: # Chromatic Github Action
  +This action takes care of uploading your storybook to chromatic.
  +
  +It's a wrapper for [chromatic-cli](https://github.com/chromaui/chromatic-cli).
  +
  +It can:
  + - build your storybook
  + - upload the storybook to chromatic
  + - report snapshot diffs to log
  +
  +it does NOT:
  + - install dependencies
  +
  ## How to add an GitHub action
  - Create a file in your repo: `.github/workflows/chromatic.yml`
  runs-on: ubuntu-latest
  steps:
  - uses: actions/checkout@v1
  + - run: |
  + yarn && yarn build
  - uses: chromaui/action@v1
  with:
  appCode: <insert the chromatic appToken here>
  