\documentclass[twocolumn]{article}

\usepackage[top = 1cm, bottom = 1cm, left = 1cm, right = 1cm]{geometry}
\usepackage{enumerate}
\usepackage{enumitem}												%

\begin{document}

\title{}
\date{}
\maketitle


\section{Summary of the paper}

% - what is presented
% - what is demonstrated
% - purpose of the paper


\section{Opinion on the paper}

% - good points
% - is the paper bringing new information?
% - final opinion: publish as it is / publish after corrections / reject


\section{Major comments}

% - ignorance of related research
% - problems in:
%   - technical approach
%   - assumptions
%   - analysis
%   - results
%   - conclusions

\begin{enumerate}[label=M\arabic*),ref=M\arabic*]

	\item aaa

	\item aaa

	\item aaa

\end{enumerate}



\section{Minor comments}

% - style, grammar
% - notation
% - figures
% - tables
 
\begin{enumerate}[label=m\arabic*),ref=m\arabic*]

	\item aaa

	\item aaa

	\item aaa

\end{enumerate}



\section{Recommendations}

% - what should have been done to improve the paper
% - what should be done in the future to improve knowledge
 
 
\end{document}


