simple-document.tex

\documentclass{article}
  
  \title{A Title}
  
  \author{John Doe}
  
  \begin{document}
  	\maketitle
  	
  	\section{This is a section}
    Some text here.
    
    \subsection{This is a subsection}
    Some other text here.
    
    \subsection{This is another subsection}
    Guess what!
    
    This is another piece of information...
  \end{document}