Minor changes to comment and documentation
Minor changes to comment and documentation

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