Migrate project from objecitve-c to swift

Hi, hi have a small project in objc and after burn and learn ios Apprentice i need to convert to swift. Do you have a tutorial for this? …Or… a tutorial for import swift class into objc project?

Here awesome tutorial http://codevoyagers.com/2016/03/23/how-we-migrated-our-objective-c-projects-to-swift-step-by-step/

Read also: technical reasons Swift or Objective-C