chore: add and comment out twine environment variables

Author: jenstroeger

Makefile

@@ -220,6 +220,9 @@ emergency-release-pypi:
 	git push
 	git push --tags
 	$(MAKE) dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION)-py3-none-any.whl dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION).tar.gz
+	# TWINE_USERNAME=<USERNAME> \
+	# TWINE_PASSWORD=<PASSWORD> \
+	# TWINE_REPOSITORY_URL=<REPOSITORY_URL> \
 	# python -m twine upload --verbose --skip-existing dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION)-py3-none-any.whl dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION).tar.gz
 
 # Prune the packages currently installed in the virtual environment down to the required