Two small sentence improvements
Two small sentence improvements

stiphyMT/plantcv,jshoyer/plantcv,AntonSax/plantcv,jshoyer/plantcv,danforthcenter/plantcv,danforthcenter/plantcv,AntonSax/plantcv,stiphyMT/plantcv,stiphyMT/plantcv,danforthcenter/plantcv