made the announcement app

widget_OhMyOhMyBash/announcement/admin.py

+from django.contrib import admin
+
+# Register your models here.

widget_OhMyOhMyBash/announcement/apps.py

+from django.apps import AppConfig
+
+
+class AnnouncementConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'announcement'

widget_OhMyOhMyBash/announcement/models.py

+from django.db import models
+
+# Create your models here.

widget_OhMyOhMyBash/announcement/tests.py

+from django.test import TestCase
+
+# Create your tests here.

widget_OhMyOhMyBash/announcement/views.py

+from django.shortcuts import render
+
+# Create your views here.