Update README.md

Author: Jonathan Beliën

README.md

@@ -20,3 +20,22 @@ This is the "bpost" provider for the [Geocoder PHP](https://github.com/geocoder-
 ## Usage
 
 See [Geocoder PHP README file](https://github.com/geocoder-php/Geocoder/blob/master/README.md).
+
+```php
+use Geocoder\Query\GeocodeQuery;
+
+$httpClient = new \Http\Adapter\Guzzle6\Client();
+$provider = new \Geocoder\Provider\bpost\bpost($httpClient);
+$geocoder = new \Geocoder\StatefulGeocoder($provider, 'en');
+
+// Query with unstructured address
+$result = $geocoder->geocodeQuery(GeocodeQuery::create('5 Place des Palais 1000 Bruxelles'));
+
+// Query with structured address
+$query = GeocodeQuery::create('5 Place des Palais 1000 Bruxelles')
+    ->withData('streetNumber', '5')
+    ->withData('streetName', 'Place des Palais')
+    ->withData('postalCode', '1000')
+    ->withData('locality', 'Bruxelles');
+$results = $geocoder->geocodeQuery($query);
+```