add documentation of CareLink CSV format changes from 2015.06.29
add documentation of CareLink CSV format changes from 2015.06.29

ioet/chrome-uploader,pazaan/chrome-uploader,ioet/chrome-uploader,urmc-costik/chrome-uploader,urmc-costik/chrome-uploader,pazaan/chrome-uploader,pazaan/chrome-uploader,tidepool-org/chrome-uploader,tidepool-org/chrome-uploader,ioet/chrome-uploader,urmc-costik/chrome-uploader,tidepool-org/chrome-uploader