Add chess.com (#2662)

README.md

@@ -697,6 +697,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Brawl Stars](https://developer.brawlstars.com) | Brawl Stars Game Information | `apiKey` | Yes | Unknown |
 | [Bugsnax](https://www.bugsnaxapi.com/) | Get information about Bugsnax | No | Yes | Yes |
 | [CheapShark](https://www.cheapshark.com/api) | Steam/PC Game Prices and Deals | No | Yes | Yes |
+| [Chess.com](https://www.chess.com/news/view/published-data-api) | Chess.com read-only REST API | No | Yes | Unknown |
 | [Chuck Norris Database](http://www.icndb.com/api/) | Jokes | No | No | Unknown |
 | [Clash of Clans](https://developer.clashofclans.com) | Clash of Clans Game Information | `apiKey` | Yes | Unknown |
 | [Clash Royale](https://developer.clashroyale.com) | Clash Royale Game Information | `apiKey` | Yes | Unknown |