Add specifics to data dictionary

[SvonGrebmer]

For the reader here it may be unclear what makes a good "data dictionary" (unless I am missing something here from a previous tutorial?) Are there any references for this that could provide more guidance what to include and what not to include?

[fkohrt]

Well, the (prerequisite) "FAIR Research Data Management Workshop" contains a section on codebooks, but it is also rather short. So I can have a look if I can find any additional materials to point readers to...