_output.yml

bookdown::gitbook:
  includes:
    in_header: header.html
  toc_depth: 3
  split_by: section+number
  css: style.css
  split_bib: FALSE # change to TRUE to have refs at end of chapter
  config:
    toc:
      collapse: section
      before: |
        <li><a href="./index.html"><img src="./images/fish-forecast.jpg" width=50></a></li>
      after: |
        <li><a href="https://github.com/rstudio/bookdown" target="blank">Published with bookdown</a></li>
    download: null
    # change to download: ["pdf"] or ["pdf", "epub"] to download these
    # change to download: null
# uncomment these lines to add a link to github source and links to download
# Uncomment these lines if you want to make a pdf
#bookdown::pdf_book:
#  includes:
#    in_header: preamble.tex
#  latex_engine: xelatex

# To see the config options for HTML go to
# https://bookdown.org/yihui/bookdown/html.html
#   citation_package: natbib
# bookdown::epub_book: default