Update README.md

updated download link/description
Merge remote-tracking branch 'mrzl/master'
Merge branch 'master' of git://github.com/mrzl/LeapMotionP5
Merge branch 'master' of http://github.com/mrzl/LeapMotionP5
updated to 0.8.1

Signed-off-by: Marcel Schwittlick <marzzzel@gmail.com>
Merge branch 'master' of http://github.com/onformative/LeapMotionP5
update to 0.8.1

Signed-off-by: Marcel Schwittlick <marzzzel@gmail.com>
update to 0.8.1
Merge branch 'master' of https://github.com/mrzl/LeapMotionP5