Update README with breaking change notice

Added caution note about breaking changes in HTTP status code detection.

Author: ioa747

README.md

@@ -121,9 +121,11 @@ Following the initial alpha release, we identified and resolved a critical issue
 - Resolved a bug where `OnWebResourceResponseReceived` failed to fire due to a missing legacy header hack. Replaced with native `ResourceContext` detection.
 
 
+
 > [!CAUTION]
 > **Breaking Change**: If you have custom scripts using `OnWebResourceResponseReceived` or `OnDownloadStateChanged`, please update their signatures to use the new `$oArgs` object as demonstrated in the updated examples.
 
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 ### 🏗️ Architectural Inheritance & Refactoring
 
 Building on the foundation of v2.1.0, this version further strengthens the **Event Wrapper** hierarchy: