Change release process to use twine instead of plain python setup.py

Author: DainDwarf

README.rst

@@ -120,8 +120,13 @@ To prepare a new version:
 
 To release a new version (including the wheel)::
 
-    pip install wheel
-    python setup.py sdist bdist_wheel upload
+    pip install twine
+    python setup.py sdist bdist_wheel
+    twine upload --repository-url https://test.pypi.org/legacy/ dist/*
+
+And after testing everything works fine on the testing repository::
+
+    twine upload dist/*
 
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 Ressources