Update documnetation of TurboModule.invalidate() (#38854)

Summary:
Pull Request resolved: #38854

Update documnetation of TurboModule.invalidate()

changelog: [internal] internal

Reviewed By: rshest

Differential Revision: D48130527

fbshipit-source-id: 0ebedaad603beba646f9ad4f047492e88b5f54a0

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/turbomodule/core/interfaces/TurboModule.kt

@@ -11,6 +11,9 @@ interface TurboModule {
   /** Initialize the TurboModule. */
   fun initialize()
 
-  /** Called before React Native is torn down. Clean up after the TurboModule. */
+  /**
+   * Called during the turn down process of ReactHost. This method is called before React Native is
+   * stopped. Override this method to clean up resources used by the TurboModule.
+   */
   fun invalidate()
 }