\documentclass[a4paper,12pt]{article}
\setlength{\headheight}{20pt}

\usepackage[utf8]{inputenc}
\usepackage{fancyhdr}
\usepackage{hyperref}

\usepackage[clear]{tlp}

\pagestyle{fancy}
\fancyhf{}
\fancyhf[R]{\tlp}
\fancyhf[LH]{TLP Readme}
\fancyhf[CF]{\thepage}

\begin{document}
\verb|SPDX-License-Identifier: Apache-2.0 OR MIT|

\section{Introduction}
The goal for this \LaTeX package is to provide an easy way to use the Traffic
Light Protocol (TLP)\cite{TrafficL20:online} in your documents.

\section{Usage}
To use the package, simply add it with \verb|\usepackage[label]{tlp}| to set
the TLP level (explained in next section), then simply add the \verb|\tlp|
command wherever the TLP level should be shown like this: \tlp.

To comply with FIRST, you MUST use the \verb|\tlp| command in your header and
footer. It SHOULD be set in at least \textbf{12pt} font size. It is recommended to
right-justify TLP labels.

This document uses MUST and SHOULD as defined by RFC-2119\cite{rfc2119}.

\section{Labels}
The following labels are defined and therefore can be used with this package.
For easier use, both all-uppecase as well as all-lowercase has been implemented,
however the output will always be all-uppercase as defined by FIRST
\cite{TrafficL20:online}.

\begin{center}
    \begin{tabular}{|c|c|} 
        \hline
        \textbf{Import} & \textbf{Output} \\
        \hline
        \hline
        \verb|\usepackage[red]{tlp}| & \colorbox{tlp-c-black}{\textcolor{tlp-c-red}{TLP:RED}} \\
        \hline
        \verb|\usepackage[amber+strict]{tlp}| & \colorbox{tlp-c-black}{\textcolor{tlp-c-amber}{TLP:AMBER+STRICT}} \\
        \hline
        \verb|\usepackage[amber]{tlp}| & \colorbox{tlp-c-black}{\textcolor{tlp-c-amber}{TLP:AMBER}} \\
        \hline
        \verb|\usepackage[green]{tlp}| & \colorbox{tlp-c-black}{\textcolor{tlp-c-green}{TLP:GREEN}} \\
        \hline
        \verb|\usepackage[clear]{tlp}| & \colorbox{tlp-c-black}{\textcolor{tlp-c-clear}{TLP:CLEAR}} \\
        \hline
    \end{tabular}
\end{center}

\bibliographystyle{ieeetr}
\bibliography{refs}

\end{document}