Make developer documentation a top-level heading separate from contributing
Make developer documentation a top-level heading separate from contributing

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