Looking at 3.3.rst, it looks like we could just add the blurb to the end of the file in the "Other issues" section. The "windows.rst" file is potentially more complicated as I assume we need to leave the directions for adding the path for users that are using older versions of Python. 

Perhaps we could add a sentence to the effect of: "As of Python 3.3, you may add Python and its Scripts directory to your PATH environment variable during installation of Python."