NOBUG: fix inernal docs

CONTRIBUTING.rst

@@ -77,10 +77,10 @@ To release a new version:
     git add cpplint.py changelog.rst
     # test-release (on env by mkvirtualenv -p /usr/bin/python3)
     pip install --upgrade setuptools wheel twine
+    python3 setup.py sdist bdist_wheel
     twine upload --repository testpypi dist/*
     # ... Check website and downloads from https://test.pypi.org/project/cpplint/
     # Actual release
-    python3 setup.py sdist bdist_wheel
     twine upload dist/*
     git tag x.y.z
     git push