feat(nodes): connect on touch device

example/src/index.tsx

@@ -11,6 +11,7 @@ import Layouting from './Layouting';
 import NestedNodes from './NestedNodes';
 import Hidden from './Hidden';
 import UpdatableEdge from './UpdatableEdge';
+import TouchDevice from './TouchDevice';
 
 import './index.css';
 
@@ -51,6 +52,10 @@ const routes = [
     path: '/updatable-edge',
     component: UpdatableEdge,
   },
+  {
+    path: '/touch-device',
+    component: TouchDevice,
+  },
 ];
 
 const Header = withRouter(({ history, location }) => {