still refining knitr workflow
still refining knitr workflow

SepidehD/dev-earthlab-site,SepidehD/dev-earthlab-site,earthlab/dev-earthlab-site,SepidehD/dev-earthlab-site,earthlab/dev-earthlab-site,earthlab/dev-earthlab-site,SepidehD/dev-earthlab-site,earthlab/dev-earthlab-site