Add git tag to publish script

Author: tristanlatr

publish.sh

@@ -7,4 +7,7 @@ python3 -m twine upload --verbose dist/*
 python3 setup.py clean
 rm -rf ./dist
 rm -fr ./build
-rm -fr ./wpwatcher.egg-info
+rm -fr ./wpwatcher.egg-info
+
+git tag $(python3 setup.py -V)
+git push --tags