Update the doctest example for watershed
Update the doctest example for watershed

rjeli/scikit-image,vighneshbirodkar/scikit-image,vighneshbirodkar/scikit-image,rjeli/scikit-image,paalge/scikit-image,rjeli/scikit-image,paalge/scikit-image,vighneshbirodkar/scikit-image,paalge/scikit-image