hist fix

Perhaps this is correct "Corrected Total Steps per Day" histogram. Simply the first one but for the corrected data. You should do Rmd file reprocessing to regenerate html and md.

Oh, and you probably should push .md file to repository along with .html and .Rmd. By default RStudio may not produce it (via knitr button), you should use this code in the console:

> library(knitr)
> library(markdown)
> knit("PA_template.Rmd")