super minor doc fix
super minor doc fix

aleksandr-bakanov/astropy,kelle/astropy,lpsinger/astropy,stargaser/astropy,pllim/astropy,pllim/astropy,larrybradley/astropy,kelle/astropy,dhomeier/astropy,StuartLittlefair/astropy,pllim/astropy,larrybradley/astropy,funbaker/astropy,larrybradley/astropy,joergdietrich/astropy,tbabej/astropy,joergdietrich/astropy,MSeifert04/astropy,bsipocz/astropy,kelle/astropy,funbaker/astropy,pllim/astropy,AustereCuriosity/astropy,stargaser/astropy,DougBurke/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,tbabej/astropy,AustereCuriosity/astropy,mhvk/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,saimn/astropy,dhomeier/astropy,astropy/astropy,AustereCuriosity/astropy,StuartLittlefair/astropy,AustereCuriosity/astropy,dhomeier/astropy,funbaker/astropy,saimn/astropy,joergdietrich/astropy,astropy/astropy,mhvk/astropy,MSeifert04/astropy,bsipocz/astropy,astropy/astropy,DougBurke/astropy,larrybradley/astropy,mhvk/astropy,astropy/astropy,dhomeier/astropy,funbaker/astropy,astropy/astropy,tbabej/astropy,MSeifert04/astropy,stargaser/astropy,DougBurke/astropy,stargaser/astropy,larrybradley/astropy,dhomeier/astropy,bsipocz/astropy,StuartLittlefair/astropy,kelle/astropy,tbabej/astropy,AustereCuriosity/astropy,lpsinger/astropy,joergdietrich/astropy,mhvk/astropy,lpsinger/astropy,joergdietrich/astropy,bsipocz/astropy,saimn/astropy,pllim/astropy,mhvk/astropy,MSeifert04/astropy,StuartLittlefair/astropy,kelle/astropy,StuartLittlefair/astropy,DougBurke/astropy,saimn/astropy,tbabej/astropy,saimn/astropy,aleksandr-bakanov/astropy