message: feat(theme-typings): update README.md
diff: @@ -5,9 +5,31 @@ Generate TypeScript types to provide autocomplete for your custom theme.
  ## Usage
  ```sh
  -npx @chakra-ui/theme-typings <path/to/your/theme.(js|ts)> --out ./@types
  +npx @chakra-ui/theme-typings <path/to/your/theme.(js|ts)>
  +```
  +
  +```sh
  +$ npx @chakra-ui/theme-typings --help
  +
  +Usage: create-chakra-theme-typings [options]
  Options:
  - -o, --out <path> output directory
  + --out <path> output directory e.g.
  + node_modules/@chakra-ui/styled-system/dist/types/theming.types.d.ts
  -h, --help display help for command
  +Example call:
  + $ create-chakra-theme-typings theme.ts
  +```
  +
  +> You need to run this command after every `npm install`, because it updates
  +> some files in your node_modules
  +
  +For convenience, you can add a postinstall script to your `package.json`, so you
  +don't have to think about this every time you reinstall your dependencies.
  +
  +```json title="package.json"
  +"scripts": {
  + "gen:theme-typings": "create-chakra-theme-typings <path/to/your/theme.(js|ts)>",
  + "postinstall": "npm run gen:theme-typings"
  +}
  ```
  