README: Fix CI status badge

Author: newAM

README.rst

@@ -32,8 +32,8 @@ Full documentation including examples are avaliable in the `docs <https://newam.
 
 .. |PyPi Version| image:: https://badge.fury.io/py/monitorcontrol.svg
    :target: https://badge.fury.io/py/monitorcontrol
-.. |Build Status| image:: https://travis-ci.com/newAM/monitorcontrol.svg?branch=master
-   :target: https://travis-ci.com/newAM/monitorcontrol
+.. |Build Status| image:: https://github.com/newAM/monitorcontrol/actions/workflows/ci.yml/badge.svg
+   :target: https://github.com/newAM/monitorcontrol/actions/workflows/ci.yml
 .. |Coverage Status| image:: https://coveralls.io/repos/github/newAM/monitorcontrol/badge.svg?branch=master
    :target: https://coveralls.io/github/newAM/monitorcontrol?branch=master
 .. |Documentation Status| image:: https://img.shields.io/badge/docs-latest-blue