cleanup docstring
cleanup docstring

benslice/ggplot,assad2012/ggplot,bitemyapp/ggplot,xguse/ggplot,andnovar/ggplot,ricket1978/ggplot,xguse/ggplot,Cophy08/ggplot,eco32i/ggplot,wllmtrng/ggplot,udacity/ggplot,ricket1978/ggplot,benslice/ggplot,mizzao/ggplot,mizzao/ggplot,kmather73/ggplot,smblance/ggplot