LaTeX

\documentclass[11pt]{article} % use larger type; default would be 10pt

\usepackage[utf8]{inputenc} % set input encoding (not needed with XeLaTeX)

\title{Basic example}
\author{The Author}

\begin{document}
\maketitle

\section{A hello world example}

Your text goes here.

\subsection{A subsection}

This may become a real subsection when adding further text ...

\end{document}