Added my name to the vignette
Added my name to the vignette

USGS-R/gsplot,ldecicco-USGS/gsplot,ldecicco-USGS/gsplot,aappling-usgs/gsplot,dpattermann-usgs/gsplot,jiwalker-usgs/gsplot,jread-usgs/gsplot,lindsaycarr/gsplot,jread-usgs/gsplot,jiwalker-usgs/gsplot,thongsav-usgs/gsplot,lindsaycarr/gsplot,thongsav-usgs/gsplot,aappling-usgs/gsplot,dpattermann-usgs/gsplot