README: Add playlist example

README.md

@@ -58,3 +58,21 @@ player.wait_for_playback()
 del player
 
 ```
+
+```python
+#!/usr/bin/env python3
+import mpv
+
+player = mpv.MPV(ytdl=True, input_default_bindings=True, input_vo_keyboard=True)
+
+player.playlist_append('https://youtu.be/PHIGke6Yzh8')
+player.playlist_append('https://youtu.be/Ji9qSuQapFY')
+player.playlist_append('https://youtu.be/6f78_Tf4Tdk')
+
+player.playlist_pos = 0
+
+while True:
+    # To modify the playlist, use player.playlist_{append,clear,move,remove}. player.playlist is read-only
+	print(player.playlist)
+	player.wait_for_playback()
+```