Little update to README.md file to include index do string.guid() and string.isoDate()
Little update to README.md file to include index do string.guid() and string.isoDate()

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