Add usage example with geolocation, see jublo#80

mynetx · mynetx · commit 2e7748539574 · 2014-08-11T14:36:08.000+02:00
diff --git a/README.md b/README.md
@@ -148,6 +148,15 @@ $params = array(
 $reply = $cb->statuses_update($params);
 ```
 
+```php
+$params = array(
+    'status' => 'I love London',
+    'lat'    => 51.5033,
+    'long'   => 0.1197
+);
+$reply = $cb->statuses_update($params);
+```
+
 ```php
 $params = array(
     'screen_name' => 'jublonet'
