✨ add basic positioning texample

texamples/basics-position.md

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+\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 above
+\usetikzlibrary{positioning}
+
+\makeatletter
+
+\begin{document}
+
+  % \begin{tikzpicture}
+  \begin{tikzpicture}[
+      rounded corners=2pt,
+      inner sep=5pt,
+      line width=.6pt,
+      node distance=.8cm]
+
+    % sides & corners
+    \node (tl) at (-3,3) {}; % top left
+    \node (tr) at (3,3) {}; % top right
+    \node (br) at (3,-3) {}; % bot right
+    \node (bl) at (-3,-3) {}; % bot left
+
+    \node (t) at (0,3) {}; % top
+    \node (b) at (0,-3) {}; % bot
+    \node (l) at (-3,0) {}; % left
+    \node (r) at (3,0) {}; % left
+
+    % background grid & fill &
+    \fill[black!40!white] (bl) rectangle (tr);
+    \draw[step=1cm,gray,very thin] (bl) grid (tr);
+    \node[red!] (dot) at (tl) {yolo};
+
+    \node (0) {center};
+    \node[right=of 0] {right};
+    \node[below right=of 0] {below right};
+    \node[below=of 0] {below};
+    \node[below left=of 0] {below left};
+    \node[left=of 0] {left};
+    \node[above left=of 0] {above left};
+    \node[above=of 0] {above};
+    \node[above right=of 0] {above right};
+
+    % \node (origin) at (0,0) [draw] {origin};
+    \node (north) at (t) [draw] {north};
+    \node (south) at (b) [draw] {south};
+    \node (west) at (l) [draw] {west};
+    \node (east) at (r) [draw] {east};
+
+  \end{tikzpicture}
+\end{document}