Update README.md

Author: mattboran

README.md

@@ -48,8 +48,10 @@ client.fetchWeather(latitude: latitude, longitude: longitude) { result in
 let result = try await client.fetchWeatherAsync(latitude: latitude, longitude: longitude)
 ```
 
+See the [full documentation](https://mattboran.github.io/OpenWeatherAPI/documentation/openweatherapi/) for more information.
+
 ## Contributing
 If you find a bug or would like to contribute to this Swift package, please open an issue or submit a pull request on [GitHub](https://github.com/mattboran/OpenWeatherAPI).
 
 ## License
-This Swift package is licensed under the Apache License, Version 2.0
+This Swift package is licensed under the Apache License, Version 2.0