add admin decorators

billard/admin.py

@@ -2,18 +2,17 @@ from django.contrib import admin
 from .models import *
 
 
+@admin.register(Location)
 class LocationAdmin(admin.ModelAdmin):
+    list_display = ('name')
     pass
 
 
+@admin.register(Client)
 class ClientAdmin(admin.ModelAdmin):
     pass
 
 
+@admin.register(Table)
 class TableAdmin(admin.ModelAdmin):
     pass
-
-
-admin.site.register(Location, LocationAdmin)
-admin.site.register(Client, ClientAdmin)
-admin.site.register(Table, TableAdmin)