Update app.py

app.py

@@ -245,7 +245,9 @@ def visualize_subTaraf(taraf_num, hadith_str, yaxis):
 
 def taraf_booknum(taraf_num):
     taraf = matn_info[matn_info['taraf_ID'] == taraf_num]
-    return taraf[['matn', 'Book_ID', 'Hadith Number', 'Book_Name', 'Author']]
+    num_hadith = taraf.shape[0]
+    taraf['Index'] = np.arange(num_hadith)
+    return taraf[['matn', 'Book_ID', 'Hadith Number', 'Book_Name', 'Author', 'Index']]
 
 def visualize_hadith_isnad(df, yaxis):
     df['bookid_hadithid'] = df['Book_ID'].astype(str) + '_' + df['Hadith Number'].astype(str)