Ported Python Policy to Sphinx

[Stefano Rivera <stefanor@debian.org>]

Hacking on the docbook Python Policy is no fun.

I ported the current version to sphinx.

MR: https://salsa.debian.org/cpython-team/python3-defaults/-/merge_requests/10

Render: https://people.debian.org/~stefanor/python-policy-sphinx/

I'd appreciate it if anyone who has the time would give it a proof-read.

There are definitely sections that could use garbage collection and/or
re-writes for clarity, but the intention of this MR is to just port to
Sphinx without content changes.

There's no direct equivalent in RST for
<literal>python3.<replaceable>Y</replaceable></literal>, the best is
``python3.Y``.
Similarly, I replaced 3<replaceable>Y+1</replaceable> with ``3.(Y+1)``.

SR

-- 
Stefano Rivera
  http://tumbleweed.org.za/
  +1 415 683 3272