remove extra pytest section and fix links
remove extra pytest section and fix links

[docs only]

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