Update app.py

app.py

@@ -26,10 +26,30 @@ def home():
     <p>Your one-stop destination for all educational news, exams, and resources.</p>
     <h2>Sections</h2>
     <ul>
-        <li><a href="/exam_calendar">Exam Calendar</a></li>
-        <li><a href="#">Study Resources</a></li>
-        <li><a href="#">Results</a></li>
-        <li><a href="#">Career Guidance</a></li>
+        <li>
+            <a href="#">Exam Calendar</a>
+            <ul>
+                <li><a href="/exam_calendar">Upcoming Exams</a></li>
+                <li><a href="#">Results</a></li>
+            </ul>
+        </li>
+        <li>
+            <a href="#">Study Resources</a>
+            <ul>
+                <li><a href="#">News You Can Use</a></li>
+                <li><a href="#">Deep Dive</a></li>
+                <li><a href="#">Podcasts</a></li>
+                <li><a href="#">Webinars</a></li>
+            </ul>
+        </li>
+        <li>
+            <a href="#">Career Guidance</a>
+            <ul>
+                <li><a href="#">Career Paths</a></li>
+                <li><a href="#">Interviews</a></li>
+                <li><a href="#">Job Listings</a></li>
+            </ul>
+        </li>
     </ul>
     """