add analytics to todo.md
add analytics to todo.md
ricket1978/ggplot,assad2012/ggplot,xguse/ggplot,eco32i/ggplot,bitemyapp/ggplot,andnovar/ggplot,wllmtrng/ggplot,xguse/ggplot,benslice/ggplot,ricket1978/ggplot,kmather73/ggplot,Cophy08/ggplot,mizzao/ggplot,smblance/ggplot,udacity/ggplot,mizzao/ggplot,benslice/ggplot