\documentclass[12pt,a4paper]{article}
\usepackage[top=1.5cm, bottom=1.5cm, outer=5cm, inner=2cm, heightrounded, marginparwidth=3cm, marginparsep=0.5cm]{geometry}
\usepackage{todonotes}
\title{Authorship Detection in the Romanian Language}
\author{Chibici Tiberiu Alexandru}
\begin{document}
            
    % Title page
    \pagenumbering{gobble}
    \maketitle

    % Table of contents
    \newpage
    \tableofcontents
    
    \newpage
    \begin{abstract}
        \input{chapters/abstract}
    \end{abstract}

    % chapter 1 - introduction
    \newpage
    \pagenumbering{arabic}
    
    \section{Introduction}
    \input{chapters/introduction}
    
    % chapter 2 - previous work
    \section{Previous work}
    \input{chapters/previouswork}

    % ...
    \section{Contents}

    % chapter ? - conclusion
    \section{Conclusion}

    \phantomsection
    \addcontentsline{toc}{section}{References}
    \bibliographystyle{plain}
    \bibliography{bibliography/bibliography}

    \newpage
    \phantomsection
    \addcontentsline{toc}{section}{Annex: Things left to do}
    \listoftodos[Things left to do]

\end{document}