docs(cast): Add disclaimer about status of source support

docsite/docs/configuration/configuration.md

@@ -707,6 +707,8 @@ See [`webscrobbler.json.example`](https://github.com/FoxxMD/multi-scrobbler/blob
 
 ## [Google Cast (Chromecast)](https://www.google.com/chromecast/built-in/)
 
+**NOTE:** Google Cast support is **experimental**. You may experience crashes and errors while using this Source. Please open an issue if you experience problems and include all information detailed in the issue template to help debug your issue.
+
 If your media device can be **Cast** to using this button ![Chromecast Icon](https://upload.wikimedia.org/wikipedia/commons/2/26/Chromecast_cast_button_icon.svg) on your phone/computer then multi-scrobbler can monitor it in order to scrobble music you play.
 
 **Note:** This source relies on common, **basic** music data provided by the cast device which will always be less exhaustive than data parsed from full source integrations. If there is an existing [Source](#source-configurations) it is recommended to configure for it and blacklist the app on Google Cast, rather than relying solely on Google Cast for scrobbling.