write album api sample

Author: adamint

samples/src/main/kotlin/public/AlbumApiSample.kt

@@ -13,5 +13,10 @@ fun main() {
     // get album "Kids in Love" by the Mowgli's release date
     println(api.albums.getAlbum("spotify:album:4M2p2BIRHIeBu8Ew9IBQ0s").complete()!!.releaseDate)
 
-    //
+    // get album "Kids in Love" and a non-existant album
+    println(api.albums.getAlbums("spotify:album:4M2p2BIRHIeBu8Ew9IBQ0s", "nonexistantalbum"))
+
+    // get album "Kids in Love"'s tracks
+    println(api.albums.getAlbumTracks("spotify:album:4M2p2BIRHIeBu8Ew9IBQ0s").complete().map { it.name })
+
 }