Add letter in pool display

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

draw/migrations/0008_alter_pool_letter.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.1.7 on 2023-03-31 15:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("draw", "0007_remove_teamdraw_last_dice_teamdraw_choice_dice_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="pool",
+            name="letter",
+            field=models.PositiveSmallIntegerField(
+                choices=[(1, "A"), (2, "B"), (3, "C"), (4, "D")], verbose_name="letter"
+            ),
+        ),
+    ]