add note about setting config when building
add note about setting config when building

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