buildscripts: amsmath + \norm

Makefile

@@ -13,12 +13,12 @@ README.md: $(DOCS_ALL)
 	@(printf "# BLAHAJ Hack-a-Sat 2020 Writeups\n\n"; for file in $(DOCS_ALL); do \
 		printf -- "- [%s](%s)\n" "$$(dirname $$file)" "$$(dirname $$file)"; done) > README.md
 
-$(WRITEUP_PDF): $(DOCS_ALL) fonts.tex top.md
+$(WRITEUP_PDF): $(DOCS_ALL) fonts.tex misc.tex top.md
 	@echo "GEN    writeup.md"
 	@mkdir build/ 2>/dev/null || true
 	@find . -mindepth 3 -iname '*.png' -exec cp {} build/ \;
 	@find . -mindepth 3 -iname '*.py' -exec cp {} build/ \;
-	@cp fonts.tex jork.png build/
+	@cp fonts.tex misc.tex jork.png build/
 	@for md in top.md $(DOCS_ALL); do cat $$md; printf "\n\n\\\\newpage\n\n"; done > build/writeup.md
 	@echo "PDF    writeup.pdf"
 	@cd build && \

misc.tex

@@ -0,0 +1,2 @@
+\usepackage{amsmath}
+\newcommand{\norm}[1]{\left\lVert#1\right\rVert}

top.md

@@ -8,6 +8,7 @@ geometry: margin=0.7in
 
 header-includes: |
     \input{fonts.tex}
+    \input{misc.tex}
 
 include-before: \begin{center}\includegraphics[width=0.7\pagewidth]{jork.png}\end{center}\newpage