Add songlink / odesli (#2090)

README.md

@@ -827,6 +827,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Musixmatch](https://developer.musixmatch.com/) | Music | `apiKey` | Yes | Unknown |
 | [Openwhyd](https://openwhyd.github.io/openwhyd/API) | Download curated playlists of streaming tracks (YouTube, SoundCloud, etc...) | No | Yes | No |
 | [Songkick](https://www.songkick.com/developer/) | Music Events | `OAuth` | Yes | Unknown |
+| [Songlink / Odesli](https://www.notion.so/API-d0ebe08a5e304a55928405eb682f6741) | Get all the services on which a song is available | `apiKey` | Yes | Yes |
 | [Songsterr](https://www.songsterr.com/a/wa/api/) | Provides guitar, bass and drums tabs and chords | No | Yes | Unknown |
 | [Spotify](https://beta.developer.spotify.com/documentation/web-api/) | View Spotify music catalog, manage users' libraries, get recommendations and more | `OAuth` | Yes | Unknown |
 | [TasteDive](https://tastedive.com/read/api) | Similar artist API (also works for movies and TV shows) | `apiKey` | Yes | Unknown |