Revert "Move examples to https://github.com/react-navigation/examples"

This reverts commit 36775007b0.

examples/ReduxExample/App.js

@@ -0,0 +1,27 @@
+/**
+ * @flow
+ */
+
+import React from 'react';
+import { AppRegistry } from 'react-native';
+import { Provider } from 'react-redux';
+import { createStore } from 'redux';
+
+import AppReducer from './src/reducers';
+import AppWithNavigationState from './src/navigators/AppNavigator';
+
+class ReduxExampleApp extends React.Component {
+  store = createStore(AppReducer);
+
+  render() {
+    return (
+      <Provider store={this.store}>
+        <AppWithNavigationState />
+      </Provider>
+    );
+  }
+}
+
+AppRegistry.registerComponent('ReduxExample', () => ReduxExampleApp);
+
+export default ReduxExampleApp;