README: fix typos.
README: fix typos.

Signed-off-by: Christoph Brill <76003a65ad2176536237acdd7768cebd8cf87140@egore911.de>
(cherry picked from commit 0c0e3e3df6af54777e47550e555e76c787f6f0a4)

philipn/xserver-xorg-input-synaptics,RsrchBoy/xserver-xorg-input-synaptics,philipn/xserver-xorg-input-synaptics,philipn/xserver-xorg-input-synaptics,RsrchBoy/xserver-xorg-input-synaptics