docs(examples): add kotlin string literals

examples.md

@@ -43,7 +43,7 @@ Turns into:
 class Contact(val id: Int, var email: String) 
 
 fun main(args: Array<String>) {
-    val contact = Contact(1, "[email protected]")
+    val contact = Contact(1, "[email protected] $args, ${args.size}")
     println(contact.id)
 }
 ```