update config

Author: dipudey

README.md

@@ -40,7 +40,7 @@ After publish config file setup your credential. you can see this in your config
 "merchant_name"          => env("UPAY_MERCHANT_NAME", ""),
 "merchant_mobile"        => env("UPAY_MERCHANT_MOBILE", ""),
 "merchant_city"          => env("UPAY_MERCHANT_CITY", ""),
-"merchant_category_code" => env("UPAY_CATEGORY_CODE", "9399"),
+"merchant_category_code" => env("UPAY_CATEGORY_CODE", ""),
 "redirect_url"           => env("UPAY_CALLBACK_URL", "")
 ```
 

config/upay.php

@@ -9,6 +9,6 @@
     "merchant_name"          => env("UPAY_MERCHANT_NAME", ""),
     "merchant_mobile"        => env("UPAY_MERCHANT_MOBILE", ""),
     "merchant_city"          => env("UPAY_MERCHANT_CITY", ""),
-    "merchant_category_code" => env("UPAY_CATEGORY_CODE", "9399"),
+    "merchant_category_code" => env("UPAY_CATEGORY_CODE", ""),
     "redirect_url"           => env("UPAY_CALLBACK_URL", "")
 ];