Added TheRainery API to Weather section

README.md

@@ -918,6 +918,7 @@ API | Description | Auth | HTTPS | CORS |
 | [OpenUV](https://www.openuv.io) | Real-time UV Index Forecast | `apiKey` | Yes | Unknown |
 | [OpenWeatherMap](https://openweathermap.org/api) | Weather | `apiKey` | Yes | Unknown |
 | [Storm Glass](https://stormglass.io/) | Global marine weather from multiple sources | `apiKey` | Yes | Yes |
+| [TheRainery](https://therainery.com/documentation/) | Forecast models from meteorological institutes | `apiKey` | Yes | No |
 | [Weatherbit](https://www.weatherbit.io/api) | Weather | `apiKey` | Yes | Unknown |
 
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