fixup! improved automatic points adding script

Author: struan

crowdsourcer/management/commands/add_automatic_points.py

@@ -73,6 +73,7 @@ def print_info(self, message, level=2):
 
     def get_points(self, file):
         df = pd.read_csv(file)
+        df["answer in GRACE"] = df["answer in GRACE"].astype(str)
 
         return df