EADK (AppPkg): Update the Python ReadMe file, Python/PythonReadMe.txt, to reflect the current status of the project.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <daryl.mcdaniel@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14804 6f19259b-4bc3-4df7-8a09-765794883524