added missing assignment instructions

Author: maxschwarzmueller

code/12-adv-starting-project/frontend/src/App.js

@@ -1,3 +1,25 @@
+// Challenge / Exercise
+
+// 1. Add five new (dummy) page components (content can be simple <h1> elements)
+//    - HomePage
+//    - EventsPage
+//    - EventDetailPage
+//    - NewEventPage
+//    - EditEventPage
+// 2. Add routing & route definitions for these five pages
+//    - / => HomePage
+//    - /events => EventsPage
+//    - /events/<some-id> => EventDetailPage
+//    - /events/new => NewEventPage
+//    - /events/<some-id>/edit => EditEventPage
+// 3. Add a root layout that adds the <MainNavigation> component above all page components
+// 4. Add properly working links to the MainNavigation
+// 5. Ensure that the links in MainNavigation receive an "active" class when active
+// 6. Output a list of dummy events to the EventsPage
+//    Every list item should include a link to the respective EventDetailPage
+// 7. Output the ID of the selected event on the EventDetailPage
+// BONUS: Add another (nested) layout route that adds the <EventNavigation> component above all /events... page components
+
 function App() {
   return <div></div>;
 }