[docs] Suggest PyCharm Community as an editor for Unix platforms (issue 26149)

[berker.peksag at gmail.com]

http://bugs.python.org/review/26149/diff/18598/Doc/using/unix.rst
File Doc/using/unix.rst (right):

http://bugs.python.org/review/26149/diff/18598/Doc/using/unix.rst#newcode141
Doc/using/unix.rst:141: Please go to
https://wiki.python.org/moin/PythonEditors and
We don't usually add raw URLs to prose in Python documentation. It would
be nice to convert them to named URLs:

    Spam `eggs <https://www.python.org/eggs/>`_

instead of

    Spam https://www.python.org/eggs/

http://bugs.python.org/review/26149/