Merge pull request #2 from react-navigation/@satya164/updates

Update README and version

packages/material-bottom-tabs/README.md

@@ -1,3 +1,46 @@
 # React Navigation Material Bottom Tabs
 
-See: https://github.com/react-navigation/react-navigation-tabs
+Bottom Navigation component following [Material design guidelines](https://material.io/design/components/bottom-navigation.html) to use with React Navigation. Uses the Bottom Navigation component from [React Native Paper](https://callstack.github.io/react-native-paper/bottom-navigation.html).
+
+## Installation
+
+Open a Terminal in your project's folder and run,
+
+```sh
+yarn add react-navigation-material-bottom-tabs
+```
+
+If you're on a vanilla React Native project, you also need to install and link [react-native-vector-icons](https://github.com/oblador/react-native-vector-icons).
+
+```sh
+yarn add react-native-vector-icons
+react-native link react-native-vector-icons
+```
+
+If you don't want to install vector icons, you can use [babel-plugin-optional-require](https://github.com/satya164/babel-plugin-optional-require) to opt-out.
+
+If you use CRNA or Expo, you don't need to install vector icons. But you will need to make sure that your `.babelrc` includes `babel-preset-expo`:
+
+```json
+{
+  "presets": ["expo"]
+}
+```
+
+## Usage
+
+```js
+import { createMaterialBottomTabNavigator } from 'react-navigation-material-bottom-tabs';
+
+export default createMaterialBottomTabNavigator({
+  Album: { screen: Album },
+  Library: { screen: Library },
+  History: { screen: History },
+  Cart: { screen: Cart },
+}, {
+  initialRouteName: 'Album',
+  activeTintColor: '#F44336',
+});
+```
+
+For more info, see: https://github.com/react-navigation/react-navigation-tabs