\documentclass{article}
\usepackage{geometry}
	\geometry{
		a4paper,
		left=20mm,
		top=20mm,
	}

\input{version}

\title{Docker Notes\thanks{Revision no. \versionnumber}}
\author{Alessandro Iezzi}
\date{\versiondate}

\begin{document}
\maketitle
\end{document}