add docket id max number

app/Http/Controllers/Api/DocketMobile.php

@@ -30,7 +30,7 @@ class DocketMobile extends BaseController
 	}
 
 	function createDocketID($limit){
-		info(Docket::max('id'));
+		info(Docket::max('docket_id'));
 
 		$allowedNumbers = range(0, 9);
 		shuffle($allowedNumbers);