fixed a small mistake

main.py

@@ -93,7 +93,7 @@ def main (
 
         latest_deerjika = nico.get_latest_deerjika ()
         if latest_deerjika is not None:
-            for datum in [e for e in [latest_deerjika]]
+            for datum in [e for e in [latest_deerjika]
                             if e['contentId'] not in watched_videos]:
                 watched_videos += [datum['contentId']]