fix: double to single columns

app.py

@@ -73,7 +73,7 @@ with col2:
                 st.markdown("After transformation")
                 # st.dataframe(df_right)
                 if "baseline" in list(df_right.keys()):
-                    st.markdown(f"A **baseline** feature has been found on your data, do you want to merge it with **{[k for k in list(df_right.keys()) if k != "baseline"]}** with in a new calculated field?")
+                    st.markdown(f"A **baseline** feature has been found on your data, do you want to merge it with **{[k for k in list(df_right.keys()) if k != 'baseline']}** with in a new calculated field?")
                     relative_key = f"relative_{[k for k in list(df_right.keys()) if k != "baseline"][0]}"
                     add_relative = st.button(f"Add {relative_key}")
                     if add_relative: