Add the presentation for the LinkML Community Call of March 2026.

I was initially going to create a separate repository for this, but upon
reflection, we might as well consider that presentation as a part of the
documentation and keep it in the same repository as LinkML-Java itself.

Author: gouttegd

docs/intro-presentation/.gitignore

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+revision.tex
+svgs/*.png
+*.DS_Store
+*.abs
+*.aux
+*.bbl
+*.bcf
+*.blg
+*.fdb_latexmk
+*.fls
+*.log
+*.nav
+*.out
+*.pdf
+*.pdf
+*.run.xml
+*.snm
+*.toc
+*.vrb
+*.xmpdata
+*.xmpi

docs/intro-presentation/COPYING

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+all: presentation clean
+
+
+# Graphic files
+
+PNGS = svgs/ccbysa.png svgs/gerbi-logo.png svgs/change-my-mind-on-curies.png
+
+INKSCAPE = inkscape
+
+.PRECIOUS: $(PNGS)
+
+%.png: %.svg
+	$(INKSCAPE) --export-type=png --export-filename=$@ $<
+
+
+# Presentation
+
+presentation: screen.pdf handout.pdf notes.pdf
+
+PRESENTATION_SOURCES = presentation.tex revision.tex
+
+%.pdf: %.tex $(PRESENTATION_SOURCES) $(PNGS)
+	latexmk -lualatex $*
+
+
+# Helper targets
+
+revision.tex:
+	git show -s --format='%aD %H' > revision.tex
+
+.PHONY: clean mrproper
+clean:
+	rm -f {screen,handout,notes}.{aux,bbl,bcf,blg,fdb_latexmk,fls,log,nav,out,run.xml,snm,toc,vrb}
+
+mrproper: clean
+	rm -f {screen,handout,notes}.pdf revision.tex

docs/intro-presentation/Makefile

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+# Introduction to LinkML-Java
+
+This directory contains the LaTeX source code for the presentation of
+LinkML-Java at the LinkML Community Call on March 19th, 2026.
+
+
+## Copying
+
+The contents of this repository are released under the terms of the
+Creative Commons Attribution-ShareAlike 4.0 International License.
+
+
+## Building
+
+Run `make all` to build the presentation.
+
+Pre-requisites:
+
+* A TeX distribution (tested with [TexLive 2025](https://tug.org/texlive/))
+* [Inkscape](https://inkscape.org).

docs/intro-presentation/README.md

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+\documentclass[smaller,table,handout]{beamer}
+\usepackage{pgfpages}
+\pgfpagesuselayout{4 on 1}[a4paper,landscape,border shrink=5mm]
+\input{presentation.tex}

docs/intro-presentation/handout.tex

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+\documentclass[smaller,table]{beamer}
+\usepackage{pgfpages}
+\pgfpagesuselayout{8 on 1}[a4paper]
+\setbeameroption{show only notes}
+\input{presentation.tex}