message: docs: getting started on README
diff: [![npm version](https://badge.fury.io/js/%40kintone%2Frest-api-client.svg)](https://badge.fury.io/js/%40kintone%2Frest-api-client)
  -## Installation
  +## Getting Started
  +
  +### Installation
  +
  +This library is distributed on `npm`.
  ```shell
  npm install @kintone/rest-api-client
  ```
  -## Usage
  +### Usage
  ```js
  const { KintoneRestAPIClient } = require("@kintone/rest-api-client");
  @@ -36,6 +40,17 @@ client.record
  });
  ```
  +### UMD files for browser environment
  +
  +This library also provides two Universal Module Definition (UMD) files:
  +
  +- https://unpkg.com/@kintone/rest-api-client@latest/umd/KintoneRestAPIClient.js
  +- minified one: https://unpkg.com/@kintone/rest-api-client@latest/umd/KintoneRestAPIClient.min.js
  +
  +After loading this, you can use `KintoneRestAPIClient` directly.
  +
  +NOTE: The UMD links are using the `latest` tag to point to the latest version of the library. This pointer is unstable, it shifts as we release new versions. You should consider pointing to a specific version, such as `v1.0.0`.
  +
  ## KintoneRestAPIClient
  > TODO: Better section name?
  