Add Fitbit data story and Dartmouth athletics data story; also update other READMEs - #291

Add Fitbit data story and Dartmouth athletics data story; also update other READMEs#291

kate-marine wants to merge 13 commits into

ContextLab:masterContextLab/storytelling-with-data:masterfrom

kate-marine:masterkate-marine/storytelling-with-data:masterCopy head branch name to clipboard