Update readme

Author: reefki

README.md

@@ -19,14 +19,27 @@ Optionally, you can publish the config file of this package with this command:
 php artisan vendor:publish --provider="Reefki\Geoip\GeoipServiceProvider" --tag="config"
 ```
 
-## Usage
+## Basic usage
 Using facade to get information of an IP address:
 
 ```php
 use Reefki\Geoip\Geoip;
 
-Geoip::get('8.8.8.8');
-Geoip::get('2001:4860:4860:0:0:0:0:8888');
+$geoip = Geoip::get('8.8.8.8');
+// Or
+$geoip = Geoip::get('2001:4860:4860:0:0:0:0:8888');
+
+$geoip->driver; // geojs.
+$geoip->ip; // 8.8.8.8
+$geoip->city; // Mountain View
+$geoip->region; // California
+$geoip->country; // United States
+$geoip->country_code; // US
+$geoip->continent_code; // NA
+$geoip->timezone; // America/Chicago
+$geoip->latitude; // 37.751
+$geoip->longitude; // -97.822
+$geoip->cached; // true or false
 ```
 
 By default the result will be cached, to get realtime data you can pass a boolean value as the second parameter:
@@ -50,6 +63,47 @@ Get visitor's anonymized IP address:
 // 2001:4860:4860:0:0:0:0:8888 = 2001:4860:4860::
 $anonymizedIp = $request->anonymizedIp();
 ```
+
+## Drivers
+
+Laravel GeoIP support multiple drivers. By default, `geojs` driver will be used if you don't specify the driver when using the facade or when calling `geoip()` method via Laravel request instance.
+
+You can change the default driver in your `.env` file as:
+
+```
+GEOIP_DEFAULT_DRIVER=geojs
+```
+
+Here are the drivers currently available for use.
+
+### [GeoJS](https://www.geojs.io)
+
+This is a completly free service, you don't have to do anything to get it to work. Simply pass `geojs` to the driver paremeter.
+
+```php
+use Reefki\Geoip\Geoip;
+
+Geoip::driver('geojs')->get('8.8.8.8');
+```
+
+### [IPData](https://ipdata.co)
+
+To use this driver, [register](https://dashboard.ipdata.co/sign-up.html) an account and put the API key in your `.env` file as:
+
+```
+IPDATA_API_KEY=YOUR_API_KEY
+```
+
+To get the IP information using this driver you can pass `ip-data` to the driver parameter:
+
+```php
+use Reefki\Geoip\Geoip;
+
+Geoip::driver('ip-data')->get('8.8.8.8');
+```
+
+> Please note: IPData offers 1500 daily free requests. If your daily usage is more than 1500 you need to upgrade to one of their paid plan.
+
 ## Testing
 
 Run the tests with: