[VEG-2483] Update docs to reflect react scaffold update

packages/react/README.md

@@ -190,10 +190,6 @@ taking note of the created filename.
 
 For more information on the Zendesk CLI please see the [documentation](https://developer.zendesk.com/documentation/apps/app-developer-guide/zcli/).
 
-## External Dependencies
-
-External dependencies are defined in [webpack.config.js](https://github.com/zendesk/app_scaffolds/blob/master/packages/react/webpack.config.js). This ensures these dependencies are included in your app's `index.html`.
-
 ## Contribute
 
 - Put up a PR into the master branch.

packages/react/doc/i18n.md

@@ -0,0 +1,62 @@
+## Using the I18n module
+
+The `useI18n` hook can be used to translate strings based on the current user's locale settings.
+
+### Setup
+
+Put a `defaultLocale` property into your `manifest.json` file, otherwise it will use english (en)
+
+Add your translation files as `src/translations/XX.json` where `XX` is a locale such as `en-US`, `de`, or `zh`.
+
+A simple translation file might look like this:
+
+```json
+{
+  "hello": "Hello!",
+  "goodbye": "Bye {{name}}!",
+  "formal": {
+    "farewell": "Farewell, friend."
+  }
+}
+```
+
+The "app" section in translation files is used *only* for public app listings in the Zendesk Marketplace. For these listings, we only allow English. The "app" sections in other translation files will be ignored.
+
+### Initialization
+
+When you know which locale you want to use, call `useI18n`. An example of this can be found in the `/src/app/locations/Modal.jsx` component, where the `modal.title` will be translated.
+
+```javascript
+import { XL } from '@zendeskgarden/react-typography'
+import { useI18n } from '../hooks/useI18n'
+
+const Modal = () => {
+  const { t } = useI18n()
+  return <XL isBold>{t('modal.title')}</XL>
+}
+
+export default Modal
+```
+
+## Reference
+
+### i18n.t(key, context)
+
+Returns a translated string using a key that is available in the relevant translation file (found in `src/translations/XX.json`).
+
+#### Arguments
+
+* `key`: The key assigned to the string in the JSON file. Dots may be used to access nested objects.
+* `context`: An object with named values to be interpolated into the resulting string.
+
+#### Returns
+
+A translated string generated by keying into the JSON file and interpolating any placeholders.
+
+#### Example
+
+```javascript
+i18n.t('hello'); // returns "Hello!"
+i18n.t('goodbye', { name: 'Yak' }); // returns "Bye Yak!"
+i18n.t('formal.farewell'); // returns "Farewell, friend."
+```