another change to the tutorial
another change to the tutorial

I found the method that I didn't update in the last version.

ManuSchmi88/landlab,landlab/landlab,Carralex/landlab,ManuSchmi88/landlab,SiccarPoint/landlab,cmshobe/landlab,SiccarPoint/landlab,amandersillinois/landlab,csherwood-usgs/landlab,Carralex/landlab,csherwood-usgs/landlab,cmshobe/landlab,decvalts/landlab,amandersillinois/landlab,RondaStrauch/landlab,RondaStrauch/landlab,Carralex/landlab,landlab/landlab,RondaStrauch/landlab,landlab/landlab,laijingtao/landlab,laijingtao/landlab,decvalts/landlab,cmshobe/landlab,ManuSchmi88/landlab