more details about validate behavior in README
more details about validate behavior in README

jeffbski/joi,tpiecora/joi,bananaoomarang/joi,opyate/joi,cesarmarinhorj/joi,olistic/joi-extended,davidbenko9/joi,danielb2/joi,jagoda/joi,pandeysoni/joi,thethanghn/react-native-joi,rmoorman/joi,ck-lee/joi,lloydbenson/joi,pikselpalette/joi,robertherber/joi-extended,naitsric/joi,geminiyellow/joi