Update README.md

Add MapTiler provider to the list of providers.

Author: jbelien

README.md

@@ -138,6 +138,7 @@ Provider       | Package | Features | Stats
 [LocationIQ](https://github.com/geocoder-php/locationiq-provider) | `geocoder-php/locationiq-provider` | address, reverse <br> [Website](https://locationiq.org/) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/locationiq-provider/v/stable)](https://packagist.org/packages/geocoder-php/locationiq-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/locationiq-provider/downloads)](https://packagist.org/packages/geocoder-php/locationiq-provider)
 [Mapbox](https://github.com/geocoder-php/mapbox-provider) | `geocoder-php/mapbox-provider` | address, reverse <br> [Website](https://www.mapbox.com/geocoding/) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/mapbox-provider/v/stable)](https://packagist.org/packages/geocoder-php/mapbox-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/mapbox-provider/downloads)](https://packagist.org/packages/geocoder-php/mapbox-provider)
 [MapQuest](https://github.com/geocoder-php/mapquest-provider) | `geocoder-php/mapquest-provider` | address, reverse <br> [Website](http://developer.mapquest.com/web/products/dev-services/geocoding-ws) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/mapquest-provider/v/stable)](https://packagist.org/packages/geocoder-php/mapquest-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/mapquest-provider/downloads)](https://packagist.org/packages/geocoder-php/mapquest-provider)
+[MapTiler](https://github.com/geocoder-php/maptiler-provider) | `geocoder-php/maptiler-provider` | address, reverse <br> [Website](https://www.maptiler.com/cloud/geocoding/) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/maptiler-provider/v/stable)](https://packagist.org/packages/geocoder-php/maptiler-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/maptiler-provider/downloads)](https://packagist.org/packages/geocoder-php/maptiler-provider)
 [Nominatim](https://github.com/geocoder-php/nominatim-provider) <br> (OpenStreetMap) | `geocoder-php/nominatim-provider` | address, reverse <br> [Website](http://wiki.openstreetmap.org/wiki/Nominatim) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/nominatim-provider/v/stable)](https://packagist.org/packages/geocoder-php/nominatim-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/nominatim-provider/downloads)](https://packagist.org/packages/geocoder-php/nominatim-provider)
 [OpenCage](https://github.com/geocoder-php/open-cage-provider) | `geocoder-php/open-cage-provider` | address, reverse <br> [Website](https://opencagedata.com/) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/open-cage-provider/v/stable)](https://packagist.org/packages/geocoder-php/open-cage-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/open-cage-provider/downloads)](https://packagist.org/packages/geocoder-php/open-cage-provider)
 [OpenRouteService](https://github.com/geocoder-php/openrouteservice-provider) | `geocoder-php/openrouteservice-provider` | address, reverse <br> [Website](https://openrouteservice.org/) | [![Latest Stable Version](https://poser.pugx.org/geocoder-php/openrouteservice-provider/v/stable)](https://packagist.org/packages/geocoder-php/openrouteservice-provider) <br>[![Total Downloads](https://poser.pugx.org/geocoder-php/openrouteservice-provider/downloads)](https://packagist.org/packages/geocoder-php/openrouteservice-provider)