Skip headings when there are no decks #35
Description
We should avoid outputting a header when there are no decks under that heading.
This comes up with 'Cheatsheets' where we have cheatsheets in the book but not as slides.
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We should avoid outputting a header when there are no decks under that heading.
This comes up with 'Cheatsheets' where we have cheatsheets in the book but not as slides.