TeX template for nice looking cheat sheets

cheatsheet.tex

\documentclass[10pt,a4paper]{article}

\usepackage{fontspec, polyglossia}
\usepackage{amsmath, amssymb, amsthm}
\usepackage{multicol}
\usepackage[margin=.3in]{geometry}
\usepackage[normalem]{ulem}

\setmainlanguage{french}
\setotherlanguages{english, greek}
\newfontfamily\greekfont{Times New Roman}

\begin{document}

\theoremstyle{definition}
\newtheorem{defn}{Definition}[section]

\theoremstyle{remark}
\newtheorem{rem}{Remarque}

\setlength\columnsep{.3in}
\begin{multicols*}{2}

\textenglish{Cheatsheet template that works for me}

\end{multicols*}

\end{document}

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