Update CHANGES.rst
Update CHANGES.rst

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