Adding AnimeNewsNetwork API (public-apis#804)

* Addine AnimeNewsNetwork API

* Updating description of animenewsnetwork

* Update README.md

Author: hugonun

README.md

@@ -77,6 +77,7 @@ API | Description | Auth | HTTPS | CORS |
 API | Description | Auth | HTTPS | CORS |
 |---|---|---|---|---|
 | [AniList](https://github.com/AniList/ApiV2-GraphQL-Docs) | Anime discovery & tracking | `OAuth` | Yes | Unknown |
+| [AnimeNewsNetwork](https://www.animenewsnetwork.com/encyclopedia/api.php) | Anime industry news | No | Yes | Yes |
 | [Jikan](https://jikan.moe) | Unofficial MyAnimeList API | No | Yes | Yes |
 | [Kitsu](http://docs.kitsu.apiary.io/) | Anime discovery platform | `OAuth` | Yes | Unknown |
 | [Studio Ghibli](https://ghibliapi.herokuapp.com) | Resources from Studio Ghibli films | No | Yes | Unknown |