added get_inputs hint to man 5 sway-input
added get_inputs hint to man 5 sway-input

mikkeloscar/sway,1ace/sway,taiyu-len/sway,ascent12/sway,SirCmpwn/sway,4e554c4c/sway,johalun/sway,sleep-walker/sway,sleep-walker/sway,taiyu-len/sway,4e554c4c/sway,ascent12/sway,ascent12/sway,1ace/sway,1ace/sway,ptMuta/sway,mikkeloscar/sway,taiyu-len/sway