fix comments from marmelab#8079

docs/CustomRoutes.md

@@ -13,15 +13,16 @@ Alternatively, you can add your custom routes to resources. They will be availab
 import * as React from "react";
 import { Admin, Resource, CustomRoutes } from 'react-admin';
 import { Route } from "react-router-dom";
-import posts, {PostAnalytics} from './posts';
+import simpleRestProvider from 'ra-data-simple-rest';
+import posts, { PostAnalytics } from './posts';
 import comments from './comments';
 import Settings from './Settings';
 import Profile from './Profile';
 
 const App = () => (
     <Admin dataProvider={simpleRestProvider('http://path.to.my.api')}>
         <Resource name="posts" {...posts}>
-            <Route path="analytics" element={<PostAnalytics/>}>
+            <Route path="analytics" element={<PostAnalytics/>} />
         </Resource>
         <Resource name="comments" {...comments} />
         <CustomRoutes>
@@ -64,6 +65,7 @@ If you want a custom route to render without the layout (without the menu and th
 // in src/App.js
 import * as React from "react";
 import { Admin, CustomRoutes } from 'react-admin';
+import simpleRestProvider from 'ra-data-simple-rest';
 import { Route } from "react-router-dom";
 import Settings from './Settings';
 import Register from './register';