[docs] What's new item for PEP 526 -- Variable annotations (issue 28109)

[yselivanov at gmail.com]

http://bugs.python.org/review/28109/diff/18522/Doc/whatsnew/3.6.rst
File Doc/whatsnew/3.6.rst (right):

http://bugs.python.org/review/28109/diff/18522/Doc/whatsnew/3.6.rst#newcode286
Doc/whatsnew/3.6.rst:286: types of variables (including class variables
and instance variables)::
Drop the parens please

http://bugs.python.org/review/28109/diff/18522/Doc/whatsnew/3.6.rst#newcode307
Doc/whatsnew/3.6.rst:307: and Guido van Rossum
Add "Implemented by <your name>." :)

http://bugs.python.org/review/28109/diff/18522/Doc/whatsnew/3.6.rst#newcode309
Doc/whatsnew/3.6.rst:309: 
I think we can add a link to mypy and/or pytype, and maybe even mention
PyCharm.

http://bugs.python.org/review/28109/