README: typos and beautification
README: typos and beautification

Signed-off-by: Yegor Yefremov <379041fa42359f10443de1f461b1b247ec449fae@googlemail.com>
Signed-off-by: Marc Kleine-Budde <4a0ea1158d3cc63151119c05b1bff00c0bdbf421@pengutronix.de>

lalten/libsocketcan,lalten/libsocketcan,lalten/libsocketcan