Fix PlantUML error

README.md

@@ -430,20 +430,20 @@ InfoTitle o-- "+ Artist" Artist
 InfoTitle o-- "+ Feat*" Artist
 
 Manager *-- "+ DataManager" IDataManager
-Manager °-- "+ Albums*" Album 
-Manager °-- "+ Artists*" Artist 
-Manager °-- "+ InfoTitles*" InfoTitle 
-Manager °-- "+ Playlists*" Playlist 
-Manager °-- "+ CustomTitles*" CustomTitle 
-Manager °-- "+ CurrentAlbum" Album 
-Manager °-- "+ CurrentPlaylist" Playlist 
-Manager °-- "+ CurrentInfoTitle" InfoTitle
-Manager °-- "+ CurrentPlaying" CustomTitle 
+Manager o-- "+ Albums*" Album
+Manager o-- "+ Artists*" Artist 
+Manager o-- "+ InfoTitles*" InfoTitle 
+Manager o-- "+ Playlists*" Playlist 
+Manager o-- "+ CustomTitles*" CustomTitle 
+Manager o-- "+ CurrentAlbum" Album 
+Manager o-- "+ CurrentPlaylist" Playlist 
+Manager o-- "+ CurrentInfoTitle" InfoTitle
+Manager o-- "+ CurrentPlaying" CustomTitle 
 
 StubArtist *-- "+ Artists*" Artist
 
 StubAlbum *-- "+ StubArtist" StubArtist
-StubAlbum °-- "+ Albums*" Album
+StubAlbum o-- "+ Albums*" Album
 
 StubCustomTitle *-- "+ CustomTitles*" CustomTitle