test branch protection rule

README.md

@@ -47,4 +47,4 @@ When you're writing your software, you may want to:
 1) Add new unit tests in `test/test_*.py` for new functions and classes. Test not just whether the new code runs, but also if it gives a sensible result.
 2) Update the docs, including the main page (`docs/index.rst`), adding pages, and updating the API (`docs/py_API.rst`) when you add new functions and classes.
 3) Optionally change the CI triggers for each of the actions in `workflows`.
-4) Update the changelog in `HISTORY.rst` when you're ready to release your first version of the code!
+4) Update the changelog in `HISTORY.rst` when you're ready to release your first version of the code!