add scripts to generate pdf

pdf/.gitignore

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+*.pdf

pdf/README.md

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+First, ensure you've got the appropriate packages installed. For Ubuntu:
+
+```sh
+sudo apt install pandoc texlive-latex-base texlive-xetex fonts-inter
+```
+
+Then generate the PDF:
+
+```sh
+./build.sh
+```

pdf/adjust-links.lua

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+function Link(el)
+  local id = el.target
+
+  -- Fix relative links
+  if id:sub(1,1) == "." then
+    if id:find("#") then
+      id = id:match("(#.*)")
+    else
+      id = id:match(".*/(.*).md")
+      id = "#" .. id
+    end
+  end
+
+  -- Fix section header links
+  if id:sub(1,1) == '#' then
+    id = id:gsub("_", "-")
+    id = id:gsub("^[^a-zA-Z]+", "")
+    id = "#" .. id
+  end
+
+  el.target = id
+  return el
+end

pdf/build.sh

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+#!/bin/sh
+
+cd "$(dirname "$0")"
+
+pandoc header.md ../curriculum/**/*.md -s \
+  -o MDN-Curriculum-`date -u '+%Y-%m'`.pdf \
+  --metadata date="`date -u '+%Y-%m-%d'`" \
+  --pdf-engine=xelatex \
+  --lua-filter=adjust-links.lua \
+  --include-in-header=header.tex

pdf/header.md

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+---
+title: MDN Curriculum
+subtitle: The essential skillset for new front-end developers
+author-meta: The MDN Team
+toc: true
+include-before: |
+  > **MDN recommends Scrimba**
+  > 
+  >  We recommend [The Frontend Developer Career Path](https://v2.scrimba.com/the-frontend-developer-career-path-c0j?via=mdn) from our learning partner, [Scrimba](https://scrimba.com/?via=mdn). This course provides a fun, interactive learning experience that teaches all of the MDN Curriculum Core and more.
+  > 
+  > [Check it out](https://v2.scrimba.com/the-frontend-developer-career-path-c0j?via=mdn)
+geometry:
+  - a4paper
+  - margin=2cm
+linkcolor: link
+urlcolor: link
+mainfont: Inter
+---

pdf/header.tex

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+\definecolor{link}{HTML}{0069C2}
+\definecolor{quote-bg}{HTML}{fcefe2}
+
+\usepackage{mdframed}
+\renewenvironment{quote}
+  {\begin{mdframed}[
+      backgroundcolor=quote-bg,
+      linewidth=0em,
+      innerleftmargin=1em,
+      innerrightmargin=1em,
+      innertopmargin=1em,
+      innerbottommargin=1em,
+      skipabove=1em,
+      skipbelow=1em
+    ]
+  }
+  {\end{mdframed}}