Add tweaks to update notes

apps/participation/migrations/0009_tweak.py

@@ -0,0 +1,27 @@
+# Generated by Django 3.2.13 on 2022-05-15 14:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('participation', '0008_auto_20220429_1853'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Tweak',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('diff', models.IntegerField(help_text='Score to add/remove on the final score', verbose_name='difference')),
+                ('participation', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tweaks', to='participation.participation', verbose_name='participation')),
+                ('pool', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='participation.pool', verbose_name='passage')),
+            ],
+            options={
+                'verbose_name': 'tweak',
+                'verbose_name_plural': 'tweaks',
+            },
+        ),
+    ]