[3.6] Backport README.rst changes by Mariatta · Pull Request #294 · python/cpython

(cherry picked from commit 1b3d88e)

(cherry picked from commit c086685)

(cherry picked from commit e32ec93)

… syntax

Convert initializers for static type objects to use C99 designator
syntax. This way the code is more robust against changes of
PyTypeObject.

… syntax

Convert initializers for static type objects to use C99 designator
syntax. This way the code is more robust against changes of
PyTypeObject.