How to put "Help" on your blocks!

Some people is wondering how to set up a help like this,
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This was been used to show help to people how to use or what does the block do.
Use a message, connect to the block in the block editor, then apply the changes to the block.
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I hope this helps.

Congratulations on the first post to the new "How to..." category!

Very helpful. Didn't even know this was a thing.

Yoy!

Your welcome.