added migration

vote/migrations/0020_election_remind_text_sent.py

+# Generated by Django 3.1.2 on 2020-11-02 17:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('vote', '0019_auto_20201030_1913'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='election',
+            name='remind_text_sent',
+            field=models.BooleanField(default=False),
+        ),
+    ]