Added celery and rabbitmq

backend/apps/tasks.py

@@ -0,0 +1,11 @@
+from celery import shared_task 
+
+
+@shared_task
+def send_email(user_pk):
+    print(user_pk)
+
+    # if sended
+    # zmienna info itp, jesli sie straci
+
+    return None