Add source example files

source/taskqueues/celeryapp.py

@@ -0,0 +1,9 @@
+from celery import Celery
+
+application = Celery("demo", backend="redis://localhost:6379/0", broker='redis://localhost//')
+
+
+@application.task
+def show_text():
+    print("Hello")
+    return "Hello"