Add `data-google-maps-geocoding-store` parameter documentation
type="text"
data-google-maps-geocoding="map_id"
data-google-maps-marker
+ data-google-maps-geocoding-store="prefix"
>
```
If set, a movable marker is created that is coupled with the input field.
+##### `data-google-maps-geocoding-store`
+
+If set, the coordinates (latitude and longitude) are stored comma-separated in a hidden input field. Optionally, a value can be passed that is used as a prefix for the name of the input field.
+
### `MarkerLoader`
Handles a large map with many markers where markers are loaded via AJAX.