update status of top page.
update status of top page.

- append google's sl4a, I knew with
    [stackoverflow question](http://stackoverflow.com/questions/40879127/sl4a-pythonforandroid-and-android-7-0-nougat)

kuri65536/python-for-android,kuri65536/python-for-android,kuri65536/python-for-android,kuri65536/python-for-android,kuri65536/python-for-android,kuri65536/python-for-android