[docs] Missing items in installation/setup instructions (issue 12436)

http://bugs.python.org/review/12436/diff/5769/Doc/using/windows.rst File Doc/using/windows.rst (right): http://bugs.python.org/review/12436/diff/5769/Doc/using/windows.rst#newcode5... Doc/using/windows.rst:587: Notepad++ is a free source code editor and Notepad replacement that support several languagees including Python. Running in the MS Windows environment, its use is governed by GPL license. supports http://bugs.python.org/review/12436/