It is advisable to add a description of the projection blueprint mod to the mission description, as many players I know of have not noticed this feature

I dont get your second question. Information about Mithminite is in Thaumcraft book.

I mean this

What "this"? What is not clear?

This entry says that it will give the corresponding status according to the progress of the research in the Thaumcraft 6, and I want to know the detailed bonus

See Thaunomicon for that.

Are you talking about Schematica mod?

Yes, it's a useful mod that many people don't see

Where do you think best place to put a note about this mod?

Maybe in the first welcome mission? The threshold of the NuclearCraft: Overhauled and Astral Sorcery or the first quest of the chapters of these two mods are also good choices

I'd like to ask an extra question, I'm interested in Mithminite Ingot's Tinkers' Construct 2 entry researcher but I can't find the relevant information, please can I find the details of it there