ADD BOLD (**) TO TABLE CAPTIONS
ADD BOLD TO FIGURE CAPTIONS
REMOVE FIGURE FILE FROM REPO

I'm going to add the figure directory to .gitignore for now
REMOVE hc_whales.html and hc_whales.md FROM .gitignore
ADD figure/* TO .gitignore
ADD hc_whales.html AND hc_whales.md FILES

these files are derived from the hc_whales.Rmd file and may lag behind commits to that file.