Add tips

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt

@@ -110,6 +110,7 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
     override suspend fun init() {
         this@QQAndroidBotNetworkHandler.subscribeAlways<ForceOfflineEvent> {
             if (this@QQAndroidBotNetworkHandler.bot == this.bot) {
+                this.bot.logger.error("被挤下线")
                 close()
             }
         }