💄 add diagram code

diagram.tex

@@ -0,0 +1,19 @@
+% https://tex.stackexchange.com/a/51766
+\documentclass[crop,tikz,convert={outext=.svg,command=\unexpanded{pdf2svg \infile\space\outfile}},multi=false]{standalone}[2012/04/13]
+
+%\usetikzlibrary{...}% tikz package already loaded by 'tikz' option
+
+\makeatletter
+
+\begin{document}
+
+\begin{tikzpicture}
+
+  \draw (0,0) -- (10,10); % ...
+  \draw (10,0) -- (0,10); % ...
+  \draw (5,0) -- (0,10); % ...
+  \node at (5,5) {Lorem ipsum at domine standalonus};
+
+\end{tikzpicture}
+
+\end{document}