Add DSYMs to README (#771)

Author: pblazej

README.md

@@ -134,6 +134,18 @@ See [iOS Screen Sharing instructions](Docs/ios-screen-sharing.md).
 
 ## Integration Notes
 
+### Submitting to the App Store, DSYMs
+
+`LiveKitWebRTC.xcframework` binary framework, which is the main dependency of the SDK, does not contain DSYMs. Submitting the app to the App Store will result in a following warning:
+
+```
+The archive did not include a dSYM for the LiveKitWebRTC.framework with the UUIDs [...]. Ensure that the archive's dSYM folder includes a DWARF file for LiveKitWebRTC.framework with the expected UUIDs.
+```
+
+It will **not prevent** the app from being submitted to the App Store or passing the review process.
+
+If you are building a customized version of the [LiveKitWebRTC](https://github.com/webrtc-sdk/webrtc), you can use the [build script](https://github.com/webrtc-sdk/webrtc-build/blob/main/build/apple/xcframework.sh) in `DEBUG` mode to generate them locally.
+
 ### Thread safety
 
 Since `VideoView` is a UI component, all operations (read/write properties etc) must be performed from the `main` thread.