\documentclass[11pt,letterpaper]{article}

% encoding
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

% appearance: font, space, margin
\usepackage{mathptmx}
\usepackage[margin=1in]{geometry}
\usepackage[parfill]{parskip}
\renewcommand{\ttdefault}{lmtt}

% section style
\usepackage{titlesec}
\titleformat*{\section}{\fontsize{13pt}{13pt}\bfseries\selectfont}
\titlespacing*{\section}{0pt}{\baselineskip}{0.5\baselineskip}

% bib and urls
\usepackage{cite}               % order multiple entries in \cite{...}
\usepackage{breakurl}           % break too-long urls in refs
\usepackage{xcolor}             % color definitions, to be use for...
\usepackage[]{hyperref}         % ...clickable refs within pdf...
\hypersetup{                    % ...like so
  colorlinks,
  linkcolor={green!80!black},
  citecolor={red!70!black},
  urlcolor={blue!70!black}
}
\usepackage{xurl}
\urlstyle{rm}
\let\OLDthebibliography\thebibliography
\renewcommand\thebibliography[1]{
  \OLDthebibliography{#1}
  \setlength{\parskip}{0pt}
  \setlength{\itemsep}{0.3pt}
}

% other packages
\usepackage{graphicx} % graphics
\usepackage{lipsum}   % dummy content

% new commands and environments
\newcommand{\para}[1]{\smallskip\noindent\textbf{#1}}

\begin{document}

% title and authors
\begin{center}
{\fontsize{15pt}{15pt}\selectfont \bf
Title of Project Proposal}
\vspace{0.5\baselineskip}\\
Name (\texttt{netid}),
Name (\texttt{netid}),
...
\vspace{\baselineskip}
\end{center}

\section*{Section Title}

\lipsum[1]

\section*{Paragraphs with Run-in Headings}

\para{Run-in heading.} \lipsum[2]

\section*{Citation Examples}
Create a ``bibitem'' for each reference
and cite them~\cite{pathlet,puffer}.
Alternatively, create a separate \texttt{.bib} file.

% references (excluded from the page limit)
\newpage
\begin{thebibliography}{9}

\bibitem{pathlet}
\href{https://dl.acm.org/doi/pdf/10.1145/1592568.1592583}{
Pathlet Routing}
(Godfrey et al., SIGCOMM 2009)

\bibitem{puffer}
\href{https://www.usenix.org/system/files/nsdi20-paper-yan.pdf}{
Learning \textit{in situ}: a randomized experiment in video streaming}
(Yan et al., NSDI 2020)

\end{thebibliography}

\end{document}
