Chat: Document possible events

[iProdigy]

Description

The following chat events need documentation for the website:

• ChannelMessageActionEvent
   
• BitsBadgeEarnedEvent
• CheerEvent
   
• SubscriptionEvent
• GiftSubscriptionsEvent
• GiftSubUpgradeEvent
• PrimeSubUpgradeEvent
• ExtendSubscriptionEvent
• PayForwardEvent
   
• PrimeGiftReceivedEvent
• RewardGiftEvent
   
• RaidEvent
• RaidCancellationEvent
   
• RitualEvent
   
• UserTimeoutEvent
• UserBanEvent
• ClearChatEvent
   
• ChannelJoinEvent
• ChannelLeaveEvent
   
• ChannelModEvent
• ChannelNoticeEvent
• ListModsEvent
• ListVipsEvent
   
• HostOnEvent
• HostOffEvent
   
• UserStateEvent
   
• ChannelStateEvent
• BroadcasterLanguageEvent
• EmoteOnlyEvent
• FollowersOnlyEvent
• Robot9000Event
• SlowModeEvent
• SubscribersOnlyEvent
   
• MessageDeleteSuccess
• MessageDeleteError

Solutions

Add markdown docs

Additional context

Official documentation from twitch: https://dev.twitch.tv/docs/irc/tags

Directory where docs should go: https://github.com/twitch4j/twitch4j.github.io/tree/master/content/docs/chat or https://github.com/twitch4j/twitch4j.github.io/tree/master/content/docs/events