Document Websocket auto reconnect feature

[serhiynovos]

Do you have any examples how to implement auto reconnect feature ?

[joffrey-bion]

If you're using the web socket artifacts directly and not STOMP, you can use yourWebSocketClient.withAutoReconnect() to get a client that will automatically retry to connect when the web socket errors:
https://github.com/joffrey-bion/krossbow/blob/main/krossbow-websocket-core/src/commonMain/kotlin/org/hildan/krossbow/websocket/reconnection/ReconnectingWebSocketClient.kt#L23

If you're using STOMP, the feature is not implemented yet as it requires a few changes in the implementation of subscriptions so we can resubscribe all existing subscriptions automatically when the web socket reconnects. It is tracked in #102.