editing fixes io/ascii/fixed_width_gallery
editing fixes io/ascii/fixed_width_gallery

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