Replace Travis CI shield with GitHub actions shield

Author: srittau

README.md

@@ -1,31 +1,30 @@
-Python Asserts
-==============
+# Python Asserts
 
 [![License](https://img.shields.io/pypi/l/asserts.svg)](https://pypi.python.org/pypi/asserts/)
 [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/asserts)](https://pypi.python.org/pypi/asserts/)
 [![GitHub](https://img.shields.io/github/release/srittau/python-asserts/all.svg)](https://github.com/srittau/python-asserts/releases/)
 [![pypi](https://img.shields.io/pypi/v/asserts.svg)](https://pypi.python.org/pypi/asserts/)
-[![Travis CI](https://travis-ci.org/srittau/python-asserts.svg?branch=master)](https://travis-ci.org/srittau/python-asserts)
+[![GitHub Actions](https://img.shields.io/github/workflow/status/srittau/python-asserts/Test%20and%20lint)](https://github.com/srittau/python-asserts/actions/workflows/test-and-lint.yml)
 
 Stand-alone Assertions for Python
 
 This package provides a few advantages over the assertions provided by
 unittest.TestCase:
 
-* Can be used stand-alone, for example:
-    * In test cases, not derived from TestCase.
-    * In fake and mock classes.
-    * In implementations as rich alternative to the assert statement.
-* PEP 8 compliance.
-* Custom stand-alone assertions can be written easily.
-* Arguably a better separation of concerns, since TestCase is responsible
+- Can be used stand-alone, for example:
+  - In test cases, not derived from TestCase.
+  - In fake and mock classes.
+  - In implementations as rich alternative to the assert statement.
+- PEP 8 compliance.
+- Custom stand-alone assertions can be written easily.
+- Arguably a better separation of concerns, since TestCase is responsible
   for test running only, if assertion functions are used exclusively.
 
 There are a few regressions compared to assertions from TestCase:
 
-* The default assertion class (`AssertionError`) can not be overwritten. This
+- The default assertion class (`AssertionError`) can not be overwritten. This
   is rarely a problem in practice.
-* asserts does not support the `addTypeEqualityFunc()` functionality.
+- asserts does not support the `addTypeEqualityFunc()` functionality.
 
 Usage: