Add messages for better understanding

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

draw/migrations/0005_draw_last_message.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.7 on 2023-03-24 10:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("draw", "0004_remove_teamdraw_index_teamdraw_choose_index_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="draw",
+            name="last_message",
+            field=models.TextField(blank=True, default="", verbose_name="last message"),
+        ),
+    ]