\usepackage[utf8]{inputenc}
%\usepackage[style=spanish]{csquotes}
%\usepackage[catalan]{babel}
\usepackage{graphicx}
\usepackage[labelfont=bf]{caption}
\usepackage{siunitx}
\usepackage{geometry}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{booktabs}
\usepackage{multicol}
\usepackage{hyperref}
\usepackage{biblatex}
\usepackage{adjustbox}
\usepackage{array}
\usepackage{float}
\usepackage{stackengine}
\usepackage{titlesec}
\usepackage{titlepic}
\usepackage{wrapfig}

% To include the bibliography in the ToC:
\usepackage[nottoc,numbib]{tocbibind}

\setlength{\parskip}{1em}
\titlespacing\section{0pt}{6pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}