Update app.py

app.py

@@ -495,7 +495,7 @@ def main():
   #   #st.write(f.write(json.dump(json_data)))
   #   #f.write(json.dump(json_data))
   #   json.dump(json_data, f)
-  with open('level2.json', "r+") as f:
+  with open('level2.json', "w+") as f:
     data = f.read()
     #st.write(data)
     f.seek(0)