[docs] [issue14674] Add link to RFC 4627 from json documentation

[Chris Rebert]

Changes by Chris Rebert <pybugs at rebertia.com>:


Removed file: http://bugs.python.org/file25592/json.rst.patch

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14674>
_______________________________________