fix related_name; add requirement for server

.gitignore

@@ -1,2 +1,3 @@
 *.sqlite3
 *.idea
+/stories/stories/settings.py

stories/requirements.txt

@@ -1,2 +1,3 @@
 Django==3.1.7
 django-formtools==2.2
+mysqlclient==2.0.3

stories/writingtogether/models.py

@@ -27,7 +27,7 @@ class StoryRound(models.Model):
 
     def next_round_ready(self) -> bool:
         for story in self.story_set.all():
-            if not story.storypart_set.get(turn_number=self.current_turn).finished:
+            if not story.parts.get(turn_number=self.current_turn).finished:
                 return False
         return True