Fix formatting

Author: unicodeveloper

src/Paystack.php

@@ -112,9 +112,11 @@ private function setRequestOptions()
     public function makePaymentRequest( $data = null)
     {
         if ( $data == null ) {
-                $quantity = intval(request()->quantity);
-              $data = [
-                "amount" => intval(request()->amount)*$quantity,
+
+            $quantity = intval(request()->quantity);
+
+            $data = [
+                "amount" => intval(request()->amount) * $quantity,
                 "reference" => request()->reference,
                 "email" => request()->email,
                 "plan" => request()->plan,