Add KSoft.Si Lyrics (#1835)

README.md

@@ -724,6 +724,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Jamendo](https://developer.jamendo.com/v3.0/docs) | Music | `OAuth` | Yes | Unknown |
 | [JioSaavn](https://github.com/cyberboysumanjay/JioSaavnAPI) | API to retrive song information, album meta data and many more from JioSaavn | No | Yes | Unknown |
 | [KKBOX](https://developer.kkbox.com) | Get music libraries, playlists, charts, and perform out of KKBOX's platform | `OAuth` | Yes | Unknown |
+| [KSoft.Si Lyrics](https://docs.ksoft.si/api/lyrics-api) | API to get lyrics for songs | `apiKey` | Yes | Unknown |
 | [LastFm](https://www.last.fm/api) | Music | `apiKey` | Yes | Unknown |
 | [Lyrics.ovh](http://docs.lyricsovh.apiary.io/) | Simple API to retrieve the lyrics of a song | No | Yes | Unknown |
 | [Mixcloud](https://www.mixcloud.com/developers/) | Music | `OAuth` | Yes | Yes |