I have a problem with the section headings using the titlesec-package. I want to have all the titles left-aligned. However, when I write longer titles such as "Peer-reviewed Publications" then "Peer-reviewed" is left-aligned and "Publications" is right-aligned with a big gap in between. How can I bring the whole title to the left-hand sinde?
\documentclass{article}
\usepackage {currvita}
\usepackage{ragged2e}
\usepackage[margin=1in]{geometry}
\usepackage{titlesec}
\thispagestyle{empty}
\titleformat{\section}
{\normalfont\Large\bfseries}{\thesection}{1em}{}[{\titlerule[2pt]}]
\begin{document}
\date{}
\centering
\begingroup
\fontsize{15pt}{15pt}\selectfont
\textbf{sdfsdf}
\endgroup
\raggedright
\section*{Education}
\section*{Peer-reviewed Publications}