Show Custom Recipes in recipe book

[ColaIan]

Show Custom Recipes in recipe book

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Detailed explanation of what it should do, when and in what situation:

In new versions of Minecraft, there's a thing called recipe book in the Crafting GUI, and I wish custom recipes can be shown there just like datapacks.

Basic explanation as to why this feature is needed and/or useful to have:

This is useful for players to see that custom recipes that we have, instead of having me to make a tutorial just for recipes, or players asking recipies all the time.