Update screenshot and clean up App Store markdown

diff --git a/README.md b/assets/app_store.md files to streamline documentation

Author: bartTC

README.md

@@ -6,7 +6,7 @@
 
 A Safari extension that displays CDN cache status (HIT/MISS) for the current page with detailed header information.
 
-![Screenshot](screenshot.jpg)
+![Screenshot](assets/screenshot-light.png)
 
 ## Download
 

assets/app_store.md

@@ -1,17 +1,11 @@
 # App Store Content
 
-Copy-paste content for App Store Connect.
-
----
-
 ## App Information
 
 **Name:** Cache Status
 
 **Subtitle:** CDN cache status for Safari
 
----
-
 ## Description
 
 ```
@@ -42,39 +36,8 @@ PRIVACY FIRST
 Cache Status processes everything locally in your browser. No data is collected, stored, or transmitted.
 ```
 
----
-
 ## Keywords
 
 ```
 cdn,cache,cloudflare,cloudfront,fastly,akamai,developer,webdev,headers,performance,safari
 ```
-
----
-
-## What's New
-
-Copy from `RELEASE_NOTES.md` for the current version.
-
----
-
-## App Review Notes
-
-```
-This is a Safari Web Extension for developers. It displays HTTP cache headers
-(like x-cache, cf-cache-status) in a popup when clicking the toolbar icon.
-
-To test:
-1. Enable the extension in Safari → Settings → Extensions
-2. Visit any website using a CDN (e.g., cloudflare.com, github.com)
-3. Click the Cache Status icon in the toolbar
-4. The popup shows cache status and headers
-
-No account or login required.
-```
-
----
-
-## Screenshots
-
-*(Add screenshot files here)*