fixed link in doc
fixed link in doc

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