made Announcement model migrations

announcements/migrations/0001_initial.py

+# Generated by Django 4.0.3 on 2022-03-21 06:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Announcement',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('announcement_title', models.CharField(max_length=200)),
+                ('announcement_body', models.TextField()),
+                ('pub_date', models.DateField(auto_now_add=True)),
+            ],
+        ),
+    ]