Changed build status badge to GitHub actions badge.
[![Latest Release](https://badge.fury.io/py/eventsourcing.svg)](https://pypi.org/project/eventsourcing/)
-![Build Status](https://github.com/johnbywater/eventsourcing/actions/workflows/runtests.yaml/badge.svg?branch=master)
+
+[![Build Status](https://github.com/johnbywater/eventsourcing/actions/workflows/runtests.yaml/badge.svg?branch=9.0)](https://github.com/johnbywater/eventsourcing/blob/9.0/README.md)
+
[![Coverage Status](https://coveralls.io/repos/github/johnbywater/eventsourcing/badge.svg?branch=master#)](https://coveralls.io/github/johnbywater/eventsourcing)
# Event Sourcing in Python
