requested doc changes [skip-ci]
requested doc changes [skip-ci]

pllim/astropy,lpsinger/astropy,lpsinger/astropy,stargaser/astropy,larrybradley/astropy,astropy/astropy,astropy/astropy,mhvk/astropy,bsipocz/astropy,saimn/astropy,dhomeier/astropy,stargaser/astropy,mhvk/astropy,StuartLittlefair/astropy,stargaser/astropy,bsipocz/astropy,saimn/astropy,dhomeier/astropy,lpsinger/astropy,mhvk/astropy,saimn/astropy,pllim/astropy,astropy/astropy,larrybradley/astropy,saimn/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,astropy/astropy,pllim/astropy,larrybradley/astropy,stargaser/astropy,StuartLittlefair/astropy,MSeifert04/astropy,aleksandr-bakanov/astropy,pllim/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,MSeifert04/astropy,pllim/astropy,mhvk/astropy,MSeifert04/astropy,saimn/astropy,MSeifert04/astropy,bsipocz/astropy,larrybradley/astropy,lpsinger/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,dhomeier/astropy,dhomeier/astropy,StuartLittlefair/astropy,mhvk/astropy