fix lines

billard/models.py

@@ -1,15 +1,15 @@
 from django.db import models
 
-# Create your models here.
-
 
 class Location(models.Model):
     name = models.CharField(max_length=30, unique=True)
 
+
 class Client(models.Model):
     id = models.UUIDField(primary_key=True, editable=False)
     location = models.ForeignKey(Location)
 
+
 class Table(models.Model):
     client = models.ForeignKey(Client)
     number = models.IntegerField()