Add an entry for the Canadian Football League API. (#861)

README.md

@@ -695,6 +695,7 @@ API | Description | Auth | HTTPS | CORS |
 |---|---|---|---|---|
 | [balldontlie](https://balldontlie.io) | Ballldontlie provides access to stats data from the NBA | No | Yes | Yes |
 | [BikeWise](https://www.bikewise.org/documentation/api_v2) | Bikewise is a place to learn about and report bike crashes, hazards and thefts | No | Yes | Unknown |
+| [Canadian Football League (CFL)](http://api.cfl.ca/) | Official JSON API providing real-time league, team and player statistics about the CFL | `apiKey` | Yes | No |
 | [Cartola FC](https://github.com/wgenial/cartrolandofc) | The Cartola FC API serves to check the partial points of your team | No | Yes | Unknown |
 | [City Bikes](http://api.citybik.es/v2/) | City Bikes around the world | No | No | Unknown |
 | [Cricket Live Scores](https://market.mashape.com/dev132/cricket-live-scores) | Live cricket scores | `X-Mashape-Key` | Yes | Unknown |