Months are now in proper order!

Rmd files are picky, I had to run that line of code to reorder the months in a different place than I ran it in my original R script.

## Warning: package 'bindrcpp' was built under R version 3.4.3
## Warning: Removed 3 rows containing missing values (geom_errorbar).

## Warning: Removed 3 rows containing missing values (geom_errorbar).

## Warning: Removed 3 rows containing missing values (geom_errorbar).