Update app.py

app.py

@@ -13,7 +13,7 @@ crf = load_model()
 def extract_features(sentence):
     return [{"word": token, "pos": pos} for token, pos in zip(sentence["Token"], sentence["POS"])]
 
-st.title("📝 Tool Gán Nhãn Chunking")
+st.title("📝 Preprocessing tool")
 
 # Upload file
 uploaded_file = st.file_uploader("📤 Tải lên file CSV chứa dữ liệu cần gán nhãn", type=["csv"])