fix a couple of typos
fix a couple of typos

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