Update README.md

Author: GrayWolf52

README.md

@@ -24,9 +24,12 @@
 
     ![Adsvertising](https://github.com/wolf-package/advertising/assets/126542083/47b53d5a-a65f-41be-b2f9-8e06cd09cb77)
 
-- Import `Scripting Define Symbols`
+- Import `Scripting Define Symbols` in `Project Settings` > `Player` > `Other Settings`
     -   For Applovin: `VIRTUESKY_ADS` and `ADS_APPLOVIN`
     -   For Admob: `VIRTUESKY_ADS` and `ADS_ADMOB`
+      
+    ![Screenshot 2023-10-03 175544](https://github.com/wolf-package/advertising/assets/56286032/44ab8706-b06e-49da-86fa-c67663ed4339)
+
 
 - Script show ads (demo)