\titleformat{\section}{%
\color{headings}\fontsize{18pt}{18pt}\selectfont%
\raggedright\scshape}{}{0pt}{}[{\titleline{\titlerule[1.5pt]}}]
-\titlespacing*{\section}{0pt}{0pt}{4pt}
+\titlespacing*{\section}{0pt}{0.5em}{4pt}
\titleformat{\subsection}{%
\color{subheadings}\fontsize{14pt}{14pt}\selectfont%
\raggedright}{}{0pt}{}
-\titlespacing*{\subsection}{0pt}{0em}{0em}
+\titlespacing*{\subsection}{0pt}{0.5em}{0em}
\def\myauthor{Don Armstrong}
\def\mytitle{Resume}