Add Acknowledgements section crediting AstaBench

- Added new Acknowledgements section to About page
- Credits AstaBench leaderboard (Allen Institute for AI) for UI design and methodology
- Lists key aspects adapted: macro-averaging, visualization, UI structure
- Positioned before Citation section

about.py

@@ -150,7 +150,33 @@ def build_page():
         )
         gr.Markdown("---", elem_classes="divider-line")
 
-        # --- Section 7: Citation ---
+        # --- Section 7: Acknowledgements ---
+        gr.HTML(
+            """
+            <h2>Acknowledgements</h2>
+            <p>
+                The OpenHands Index leaderboard interface and visualization components are adapted from the 
+                <a href="https://huggingface.co/spaces/allenai/asta-bench-leaderboard" target="_blank" class="primary-link-button">AstaBench Leaderboard</a> 
+                developed by the Allen Institute for AI. We thank the AstaBench team for their excellent work in creating 
+                a clear and effective leaderboard design that we have customized for the software engineering domain.
+            </p>
+            <p>
+                Key aspects adapted from AstaBench include:
+            </p>
+            <ul class="info-list">
+                <li>Macro-averaging methodology for computing overall scores from category-level averages</li>
+                <li>Interactive data visualization and filtering components</li>
+                <li>Leaderboard UI structure and styling</li>
+            </ul>
+            <p>
+                We have extended and modified this foundation to support software engineering benchmarks and the 
+                specific requirements of evaluating AI coding agents.
+            </p>
+            """
+        )
+        gr.Markdown("---", elem_classes="divider-line")
+
+        # --- Section 8: Citation ---
         gr.HTML(
             """
             <h2>Citation</h2>