copy edit io/fits/usage/headers
copy edit io/fits/usage/headers

stargaser/astropy,astropy/astropy,lpsinger/astropy,larrybradley/astropy,saimn/astropy,pllim/astropy,stargaser/astropy,saimn/astropy,StuartLittlefair/astropy,mhvk/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,pllim/astropy,pllim/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,stargaser/astropy,dhomeier/astropy,MSeifert04/astropy,MSeifert04/astropy,lpsinger/astropy,StuartLittlefair/astropy,astropy/astropy,larrybradley/astropy,astropy/astropy,dhomeier/astropy,pllim/astropy,lpsinger/astropy,mhvk/astropy,dhomeier/astropy,MSeifert04/astropy,mhvk/astropy,pllim/astropy,dhomeier/astropy,dhomeier/astropy,lpsinger/astropy,astropy/astropy,StuartLittlefair/astropy,mhvk/astropy,saimn/astropy,astropy/astropy,saimn/astropy,MSeifert04/astropy,lpsinger/astropy,larrybradley/astropy,mhvk/astropy,aleksandr-bakanov/astropy,saimn/astropy,larrybradley/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,stargaser/astropy