reprex 2.0.1

reprex_document() has been adjusted for compatibility with changes introduced in Pandoc 2.13 around YAML headers (#375, #383 @cderv).

reprex_rtf() (and the unexported prex_rtf()) work again.
One of the filepaths involved in the highlight call was broken, but now it's not (#379).

The unexported prex_*() functions once again write their files to a temporary directory, as opposed to current working directory (#380).