HELP: Typo 'buttondown' -> 'buttonup'

[Henrik Bengtsson]

It looks like the "buttondown" in "...the next mouse-related command that should follow is buttondown" should be "buttonup";

RSelenium/R/remoteDriver.R

Lines 998 to 1003 in 31b0232

       buttondown = function(buttonId = 0) { 
         "Click and hold the given mouse button (at the coordinates set by 
         the last moveto command). Note that the next mouse-related command 
         that should follow is buttondown . Any other mouse command (such 
         as click or another call to buttondown) will yield undefined 
         behaviour. buttonId - any one of 'LEFT'/0 'MIDDLE'/1 'RIGHT'/2.