Update readme for 0.0.6

README.md

@@ -21,6 +21,9 @@ var Demo = React.createClass({
   }
 });
 
+// Enable fallbacks if you want `en-US` and `en-GB` to fallback to `en`
+I18n.fallbacks = true;
+
 I18n.translations = {
   en: {
     greeting: 'Hi!'
@@ -33,7 +36,25 @@ I18n.translations = {
 
 This will render `Hi!` for devices with the English locale, and `Bonjour!` for devices with the French locale.
 
-For more info about I18n.js methods (`localize`, `pluralize`, etc) and settings see [its documentation](https://github.com/fnando/i18n-js#setting-up).
+### Fallbacks
+When fallbacks are enabled (which is generally recommended), `i18n.js` will try to look up translations in the following order (for a device with `en_US` locale):
+- en-US
+- en
+
+**Note**: iOS locales use underscored (`en_US`) but `i18n.js` locales are dasherized (`en-US`). This conversion is done automatically for you.
+```js
+I18n.fallbacks = true;
+
+I18n.translations = {
+  'en': {
+    greeting: 'Hi!'
+  },
+  'en-GB': {
+    greeting: 'Hi from the UK!'
+  }
+}
+```
+For a device with a `en_GB` locale this will return `Hi from the UK!'`, for a device with a `en_US` locale it will return `Hi!`.
 
 ### Device's locale
 You can get the device's locale with the `RNI18n` native module:
@@ -41,6 +62,10 @@ You can get the device's locale with the `RNI18n` native module:
 ```js
 var deviceLocale = require('react-native').NativeModules.RNI18n.locale
 ```
+Returns `en_US`.
+
+### I18n.js documentation
+For more info about I18n.js methods (`localize`, `pluralize`, etc) and settings see [its documentation](https://github.com/fnando/i18n-js#setting-up).
 
 ## Licence
-MIT
+MIT