Minor fixes in README.

Author: mondeja

README.rst

@@ -23,10 +23,7 @@ Using the Extension
 ===================
 
 Usage and installation instructions for this extension are available
-from the `Celery documentation`_:
-
-http://docs.celeryproject.org/en/latest/userguide/periodic-tasks.html#using-custom-scheduler-classes
-
+from the `Celery documentation`_.
 
 .. _`Celery documentation`:
     http://docs.celeryproject.org/en/latest/userguide/periodic-tasks.html#using-custom-scheduler-classes
@@ -322,4 +319,6 @@ If you have a project that is time zone naive, you can set ``DJANGO_CELERY_BEAT_
 django-celery-beat as part of the Tidelift Subscription
 -------------------------------------------------------
 
-The maintainers of django-celery-beat and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/pypi-django-celery-beat?utm_source=pypi-django-celery-beat&utm_medium=referral&utm_campaign=readme&utm_term=repo)
+The maintainers of django-celery-beat and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. `Learn more`_.
+
+.. _Learn more: https://tidelift.com/subscription/pkg/pypi-django-celery-beat?utm_source=pypi-django-celery-beat&utm_medium=referral&utm_campaign=readme&utm_term=repo