Added text

app.py

@@ -179,7 +179,10 @@ def app_main(app_mode,example_files,model_name_files):
       
       with st.form('twc_form'):
 
-        uploaded_file = st.file_uploader("Step 1. Upload text file(one sentence in a line) or choose an example text file below", type=".txt")
+        step1_line = "Step 1. Upload text file(one sentence in a line) or choose an example text file below"
+        if (app_mode ==  DOC_RETRIEVAL):
+            step1_line += ". The line need is treated as the query"
+        uploaded_file = st.file_uploader(step1_line, type=".txt")
 
         selected_file_index = st.selectbox(label=f'Example files ({len(example_file_names)})',  
                     options = list(dict.keys(example_file_names)), index=0,  key = "twc_file")