title: MKMapView with custom MKAnnotation
body: <p>I've a MKMapView.
  I want to put a custom MKAnnotation on my map.</p>
  
  <p>They are some restaurant places. How can I do it?</p>
  
  <p>My question is how can I make a custom MKAnnotation?</p>
  
  <p>Thanks, guys.</p>