Added API for AI Mastering (#757)

README.md

@@ -483,6 +483,7 @@ API | Description | Auth | HTTPS | CORS |
 ### Music
 API | Description | Auth | HTTPS | CORS |
 |---|---|---|---|---|
+| [AI Mastering](https://aimastering.com/api_docs/) | Automated Music Mastering | `apiKey` | Yes | Yes |
 | [Bandsintown](https://app.swaggerhub.com/apis/Bandsintown/PublicAPI/3.0.0) | Music Events | No | Yes | Unknown |
 | [Deezer](https://developers.deezer.com/api) | Music | `OAuth` | Yes | Unknown |
 | [Discogs](https://www.discogs.com/developers/) | Music | `OAuth` | Yes | Unknown |