Added a comment to get_thumbs_up_songs()
Added a comment to get_thumbs_up_songs()

dvirtz/gmusicapi,tanhaiwang/gmusicapi,peetahzee/Unofficial-Google-Music-API,TheOpenDevProject/gmusicapi,simon-weber/Unofficial-Google-Music-API,thebigmunch/gmusicapi,simon-weber/gmusicapi,dvirtz/gmusicapi