\documentclass{article}


\usepackage[english]{babel}
\usepackage{hyperref}
\ifdefined\HCode
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\author{\href{mailto:michal.h21@gmail.com}{Michal Hoftich}}
\else
\usepackage{luatexbase}
\usepackage{fontspec}
\setmainfont{TeX Gyre Schola}
\author{Michal Hoftich\footnote{\url{michal.h21@gmail.com}}}
\fi
\usepackage{microtype}
\providecommand\tightlist{\relax}
\ifdefined\gitdate\else\def\gitdate{Date undefined}\fi
\ifdefined\version\else\def\version{Version undefined}\fi

\title{The \texttt{tex4ebook} package}
% \author{Michal Hoftich\thanks{\url{michal.h21@gmail.com}}}
\date{Version \version\\\gitdate}
\begin{document}
\maketitle
\tableofcontents
\input{readme}

\input{changelog}
\end{document}