update HOWTOPUBLISH

Author: astanin

HOWTOPUBLISH

@@ -1,7 +1,8 @@
 # update contributors and CHANGELOG in README
 python -m pre_commit run -a # and then commit changes
 tox -e py310-extra,py311-extra,py312-extra,py313-extra,py314-extra
-# tag version release
+# tag version release (vX.Y.Z)
+python -m pip install build twine
 python -m build -s # this will update tabulate/version.py
 python -m pip install . # install tabulate in the current venv
 python -m pip install -r benchmark/requirements.txt
@@ -13,3 +14,4 @@ git push # wait for all CI builds to succeed
 git push --tags # if CI builds succeed
 twine upload --repository-url https://test.pypi.org/legacy/ dist/*
 twine upload dist/*
+# use __token__ as username andPyPI API token as password (generate at pypi.org → Account settings → API tokens)