Github actions build badge (#155)

README.rst

@@ -610,8 +610,8 @@ And add ``choice_formset`` in the ``polls/templates/question_edit.html`` and ``p
    </form >
 
 
-.. |Build Status| image:: https://travis-ci.com/shosca/django-sorcery.svg?branch=master
-   :target: https://travis-ci.com/shosca/django-sorcery
+.. |Build Status| image:: https://github.com/shosca/django-sorcery/workflows/Build/badge.svg?branch=master
+   :target: https://github.com/shosca/django-sorcery/actions?query=workflow%3ABuild+branch%3Amaster
 .. |Read The Docs| image:: https://readthedocs.org/projects/django-sorcery/badge/?version=latest
    :target: http://django-sorcery.readthedocs.io/en/latest/?badge=latest
 .. |PyPI version| image:: https://badge.fury.io/py/django-sorcery.svg