Update app.py

app.py

@@ -140,7 +140,7 @@ if corpus is not None and queries is not None and qrels is not None:
         # now show the number with relevant docs less than `n_relevant_docs`
         st.header("Relevant Docs Less Than {}:".format(n_relevant_docs))
         st.subheader(f'{relevant_df[relevant_df["relevant_docs"] < n_relevant_docs].shape[0]} Queries')
-        st.text_area(relevant_df[relevant_df["relevant_docs"] < n_relevant_docs].qid.tolist())
+        st.text_area(",".join(relevant_df[relevant_df["relevant_docs"] < n_relevant_docs].qid.tolist()))
 
 
     with col2: