Readme.md updated

README.md

@@ -1 +1,47 @@
 # react-native-navigation-twopane
+
+Custom two-pane navigator for [React Navigation](https://reactnavigation.org/). Implements master/detail pattern. Built on top of Stack navigator.
+
+## Usage
+The only difference from Stack navigator is that in routes config additional field `emptyRightPaneName` should be set.
+
+```
+import {
+    createAppContainer,
+    createBottomTabNavigator,
+} from 'react-navigation'; 
+import {createTwoPaneNavigator} from "react-native-navigation-twopane";
+
+
+const routes = {
+    Item: {
+        screen: ItemScreen,
+    },
+    List: {
+        screen: ListScreen,
+    },
+    Details: {
+        screen: DetailsScreen,
+    },
+    NoChats: {
+        screen: NoChatsScreen,
+    },
+};
+
+
+const routesConfig = {
+    initialRouteName: 'List',
+    emptyRightPaneName: 'NoChats'
+};
+
+const MasterDetailNavigator = createTwoPaneNavigator(routes, routesConfig);
+
+const AppContainer = createAppContainer(MasterDetailNavigator);
+
+export default class App extends React.Component {
+    render() {
+        return <AppContainer/>
+    }
+}
+
+```