Update Black History Facts, new link

README.md

@@ -1242,7 +1242,7 @@ API | Description | Auth | HTTPS | CORS |
 | [18F](http://18f.github.io/API-All-the-X/) | Unofficial US Federal Government API Development | No | No | Unknown |
 | [API Setu](https://www.apisetu.gov.in/) | An Indian Government platform that provides a lot of APIS for KYC, business, education & employment | No | Yes | Yes |
 | [Archive.org](https://archive.readme.io/docs) | The Internet Archive | No | Yes | No |
-| [Black History Facts](https://blackhistoryapi.io/docs) | Contribute or search one of the largest black history fact databases on the web | `apiKey` | Yes | Yes |
+| [Black History Facts](https://www.blackhistoryapi.io/docs) | Contribute or search one of the largest black history fact databases on the web | `apiKey` | Yes | Yes |
 | [BotsArchive](https://botsarchive.com/docs.html) | JSON formatted details about Telegram Bots available in database | No | Yes | Unknown |
 | [Callook.info](https://callook.info) | United States ham radio callsigns | No | Yes | Unknown |
 | [CARTO](https://carto.com/) | Location Information Prediction | `apiKey` | Yes | Unknown |