Update app.py

app.py

@@ -473,7 +473,7 @@ def main():
             'value': int(df_tab.loc[row, col])
         })
   dat = json.dumps(json_data) 
-  level2_df = pd.DataFrame(dat)
+  level2_df = pd.json_normalize(dat)
   st.write(level2_df)
   # with open('level2.json','r+') as fi:
   #     data = fi.read()