Tweak docstrings
Tweak docstrings

Minor change to rmg.save() docstring.

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