adding demitri to contributors
adding demitri to contributors

dfm/emcee3,willvousden/emcee,ipashchenko/emcee,farr/emcee,jellis18/emcee3,linan7788626/emcee,johnbachman/emcee,willvousden/emcee,johnbachman/emcee,joezuntz/emcee,ga7g08/emcee,pkgw/emcee,elkingtonmcb/emcee,drphilmarshall/emcee,dfm/emcee,dfm/emcee