add contest announcement

contest/migrations/0002_contestannouncement_created_by.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.12 on 2017-01-29 08:56
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('contest', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='contestannouncement',
+            name='created_by',
+            field=models.ForeignKey(default=None, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
+            preserve_default=False,
+        ),
+    ]