_output.yml

bookdown::gitbook:
  include:
    in_header: header.html
  css: style.css
  split_by: chapter
  config:
    sharing:
      github: true
      facebook: false
      twitter: false
    toc:
      collapse: subsection
      before: |
        <img src="img/cover_page.png" style="width:150px;padding:10px 0px 0px 10px;display: block;margin:auto;"></img>
      after: |
        <li><a href="https://github.com/rstudio/bookdown" target="blank">Published with bookdown</a></li>
    download: ["pdf", "epub"]
    edit: https://github.com/r-devel/rdevguide/edit/main/%s
    view: https://github.com/r-devel/rdevguide/blob/main/%s
    history: https://github.com/r-devel/rdevguide/commits/main/%s
bookdown::pdf_book:
  includes:
    in_header: preamble.tex
  latex_engine: xelatex
  citation_package: natbib
  keep_tex: yes
bookdown::epub_book: default