Add example of server and client validation for React

samples/react/ReactGrid/ReactApp/components/ReactApp.jsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import { Router, Route } from 'react-router';
 import { PeopleGrid } from './PeopleGrid.jsx';
+import { PersonEditor } from './PersonEditor.jsx';
 
 export default class ReactApp extends React.Component {
     render() {
@@ -8,6 +9,7 @@ export default class ReactApp extends React.Component {
             <Router history={this.props.history}>
                 <Route path="/" component={PeopleGrid} />
                 <Route path="/:pageIndex" component={PeopleGrid} />
+                <Route path="/edit/:personId" component={PersonEditor} />
             </Router>
         );
     }