message: docs: Add docs about language support
diff: @@ -18,3 +18,23 @@ or
  npm install -g create-kintone-app
  create-kintone-app ${name}
  ```
  +
  +After the command has been finished, you can start development kintone plugin!
  +
  +```
  +cd ${name}
  +npm start
  +```
  +
  +## Language
  +
  +`create-kintone-plugin` is supporting Japanese,
  +if you want to use console messages in Japanese, you can use `--lang ja` option.
  +
  +```
  +npx create-kintone-app ${name} --lang ja
  +```
  +
  +## LICENSE
  +
  +MIT License: Toru Kobayashi
  