Update app.py

app.py

@@ -821,6 +821,9 @@ def create_interface():
                 funded research project:
                 <em>Extracting Keywords from Crowdsourced Collections</em>.
             </p>
+              <p style="font-size: 14px; line-height: 1.8; margin: 0;">
+    The code for this tool was built with the aid of Claude Opus 4.
+    </p>
         </div>
         """)