Fix typos in the changelog
Fix typos in the changelog

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