Add warning about asyn_task refactor

README.rst

@@ -33,6 +33,8 @@ Requirements
 
 Tested with: Python 3.6. 3.7 Django 1.11.11 and 2.0.x
 
+.. warning:: Since Python 3.7 `async` became a reserved keyword and was refactored to `async_task`
+
 Brokers
 ~~~~~~~
 - `Redis <https://django-q.readthedocs.org/en/latest/brokers.html#redis>`__

docs/index.rst

@@ -26,6 +26,7 @@ Features
 
 Django Q is tested with: Python 3.6. 3.7 Django 1.11.11 LTS and 2.0.x
 
+
 Contents:
 
 .. toctree::

docs/tasks.rst

@@ -7,6 +7,9 @@ Tasks
 async_task()
 ------------
 
+.. warning:: Since Python 3.7 `async` became a reserved keyword and was refactored to `async_task`
+
+
 Use :func:`async_task` from your code to quickly offload tasks to the :class:`Cluster`:
 
 .. code:: python