use shutdown to shutdown notebook server before switching binder images
use shutdown to shutdown notebook server before switching binder images

nteract/nteract,nteract/composition,jdetle/nteract,captainsafia/nteract,rgbkrk/nteract,rgbkrk/nteract,jdfreder/nteract,rgbkrk/nteract,nteract/nteract,nteract/nteract,jdfreder/nteract,captainsafia/nteract,nteract/composition,rgbkrk/nteract,captainsafia/nteract,nteract/composition,jdfreder/nteract,jdfreder/nteract,jdetle/nteract,nteract/nteract,rgbkrk/nteract,jdetle/nteract,jdetle/nteract,nteract/nteract,captainsafia/nteract