small fixes

app.py

@@ -131,10 +131,10 @@ for col in original_df.columns:
         original_df[col] = original_df[col].apply(formatter) # For numerical values
  
 original_df.rename(columns=column_names, inplace=True)
-original_df.sort_values(by='Common Voice WER', inplace=True)
+original_df.sort_values(by='Common Voice', inplace=True)
 
 # Compute delta between average WER and CV WER
-original_df['Var. AVG-CV WER'] = original_df['Average WER ⬇️'] - original_df['Common Voice']
+original_df['Detla'] = original_df['Avrg. WER'] - original_df['Common Voice']
 
 COLS = [c.name for c in fields(AutoEvalColumn)]
 TYPES = [c.type for c in fields(AutoEvalColumn)]