Update app.py

app.py

@@ -140,7 +140,10 @@ with tab2:
 
  
 
-
+with st.expander("Limitations and Bias"):
+    st.write('''
+        The Named Entity Recognition (NER) model used in this demo app is limited by its training dataset of entity-annotated news articles from a specific span of time. This may not generalize well for all use cases in different domains. Furthermore, the model occassionally tags subword tokens as entities and post-processing of results may be necessary to handle those cases.
+    ''')