[docs] [issue28155] Small typo in Json docs

[Zachary Ware]

Zachary Ware added the comment:

See 05e8b25379a3, though; it may be worth a backport.  Not to 3.3, though; it's docs are not being updated anymore.

----------
nosy: +zach.ware
versions:  -Python 3.3

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28155>
_______________________________________