message: docs(react): add IonPage to nested outlet example
diff: @@ -61,10 +61,12 @@ Inside the Dashboard page, we define more routes related to this specific sectio
  ```typescript
  const DashboardPage: React.FC = () => {
  return (
  + <IonPage>
  <IonRouterOutlet>
  <Route exact path="/dashboard" component={UsersListPage} />
  <Route path="/dashboard/users/:id" component={UserDetailPage} />
  </IonRouterOutlet>
  + </IonPage>
  );
  };
  ```
  @@ -76,10 +78,12 @@ However, we can use the [`match`](https://reacttraining.com/react-router/web/api
  ```typescript
  const DashboardPage: React.FC<RouteComponentProps> = ({ match }) => {
  return (
  + <IonPage>
  <IonRouterOutlet>
  <Route exact path={match.url} component={UsersListPage} />
  <Route path={`${match.url}/users/:id`} component={UserDetailPage} />
  </IonRouterOutlet>
  + </IonPage>
  );
  };
  ```
  