Tweak section/subsection format

\usepackage{titlesec}

\titleformat{\section}{\HUGE\bfseries\color{secondary}}{\faHashtag \hspace{0mm} \thesection.}{0.2cm}{}
\titleformat{\subsection}{\Huge\bfseries\color{secondary}}{\faHashtag \hspace{0mm} \thesubsection.}{0.2cm}{}
\titleformat{\subsubsection}{\huge\bfseries\color{secondary}}{\faHashtag \hspace{0mm} \thesubsubsection.}{0.2cm}{}