Changes

Summary

1. Add details about posts being threads in some more places (#2493) (commit: 163baf4) (details)

Commit 163baf4a03a1edbcd2cfea609bd2809f48f2893f by noreply Add details about posts being threads in some more places (#2493) (commit: 163baf4)
	src/main/java/net/dv8tion/jda/api/entities/channel/concrete/ThreadChannel.java (diff)
	src/main/java/net/dv8tion/jda/api/entities/channel/attribute/IThreadContainer.java (diff)
	src/main/java/net/dv8tion/jda/api/entities/channel/forums/ForumPost.java (diff)
	src/main/java/net/dv8tion/jda/api/entities/channel/attribute/IGuildChannelContainer.java (diff)