properly document the output_yaml
option
#64
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rmarkdown 1.16 introduced the
output_yaml
metadata option which allows to explicitly specify the path to the external output options file. This wasn't documented in the book up until now. Besides the documentation wasn't (IMHO) clear enough that you can only outsource output options.I assign the copyright of this contribution to the authors of the book "R Markdown: The Definitive Guide".