Another minor update on docs
Another minor update on docs

Minor docs error for vegetation.

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