Update IGDB.com, new link

README.md

@@ -857,7 +857,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Hypixel](https://api.hypixel.net/) | Hypixel player stats | `apiKey` | Yes | Unknown |
 | [Hyrule Compendium](https://github.com/gadhagod/Hyrule-Compendium-API) | Data on all interactive items from The Legend of Zelda: BOTW | No | Yes | Unknown |
 | [Hytale](https://hytale-api.com/) | Hytale blog posts and jobs | No | Yes | Unknown |
-| [IGDB.com](https://api.igdb.com/) | Video Game Database | `apiKey` | Yes | Unknown |
+| [IGDB.com](https://api-docs.igdb.com) | Video Game Database | `apiKey` | Yes | Unknown |
 | [JokeAPI](https://sv443.net/jokeapi/v2/) | Programming, Miscellaneous and Dark Jokes | No | Yes | Yes |
 | [Jokes One](https://jokes.one/api/joke/) | Joke of the day and large category of jokes accessible via REST API | `apiKey` | Yes | Yes |
 | [Jservice](http://jservice.io) | Jeopardy Question Database | No | No | Unknown |