Add relax constants to documentation
Add relax constants to documentation

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