Mention phase parameter in docs
Mention phase parameter in docs

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