chore(examples): add layouting

example/src/index.js

@@ -19,6 +19,7 @@ import UpdatableEdge from './UpdatableEdge';
 import UpdateNode from './UpdateNode';
 import SaveRestore from './SaveRestore';
 import DragNDrop from './DragNDrop';
+import Layout from './Layouting';
 
 import './index.css';
 
@@ -91,6 +92,10 @@ const routes = [
     path: '/drag-and-drop',
     component: DragNDrop,
   },
+  {
+    path: '/layouting',
+    component: Layout,
+  },
 ];
 
 const Header = withRouter(({ history, location }) => {