Update readme to include link to wiki for nib loading helpers
Update readme to include link to wiki for nib loading helpers

idoru/PivotalCoreKit,gudatcomputers/PivotalCoreKit,joemasilotti/PivotalCoreKit,jfuchs/PivotalCoreKit,briancroom/PivotalCoreKit,joemasilotti/PivotalCoreKit,pivotaltracker/PivotalCoreKit,jfuchs/PivotalCoreKit,idoru/PivotalCoreKit,mjstallard/PivotalCoreKit,gudatcomputers/PivotalCoreKit,pivotal/PivotalCoreKit