unity: android crash handler

Author: bruno-garcia

docs/platforms/unity/native-support/index.mdx

@@ -26,6 +26,9 @@ The native crash support for Android and iOS is achieved by modifying the genera
 
 When choosing Android as a build target, Unity creates a Gradle project. During the Unity build process, the SDK embeds the [Android SDK](/platforms/android/), as well as the provided options, by adding it to the generated project's Android Manifest.
 
+Note that [Unity has an Android crash handler which takes treats the crash information as a string](https://docs.unity3d.com/6000.0/Documentation/Manual/android-handle-crashes.html). This doesn't allow Sentry to symbolicate the crash and in result becomes a very low quality crash dump.
+We recomment disalbing that through: `-androidChainedSignalHandlerBehavior:disabled`. For more information, [read the Unity documentation on this topic](https://docs.unity3d.com/6000.0/Documentation/Manual/android-handle-crashes.html).
+
 ### iOS
 
 When building your game for iOS, Unity exports it as an Xcode project. By modifying that generated project, the SDK adds the [iOS SDK](/platforms/apple/guides/ios/) to provide native support. It adds the initialization code to the `main.m` and generates the options provided by the editor configuration window as `SentryOptions.m`. The SDK also copies the `SentryNativeBridge` that enables the C# layer to communicate with the iOS SDK. This means that there's no need to use the Unity [built-in crash reporting](https://docs.unity3d.com/ScriptReference/CrashReport.html) functionality.