[docs] Expand documentation about Any in the typing module (issue 27688)

[levkivskyi at gmail.com]

Two minor comments.


http://bugs.python.org/review/27688/diff/18064/Doc/library/typing.rst
File Doc/library/typing.rst (right):

http://bugs.python.org/review/27688/diff/18064/Doc/library/typing.rst#newcode222
Doc/library/typing.rst:222: # The static type checker treats the above
Maybe "A static type checker" here too?

http://bugs.python.org/review/27688/diff/18064/Doc/library/typing.rst#newcode236
Doc/library/typing.rst:236: That means when the type of a value is
:class:`object`, the type checker will
same here "a type checker"

http://bugs.python.org/review/27688/