Script adds highlights in special environments

[osanstrong]

Currently, the script does not differentiate between conventional text and certain special environments (e.g. \subsection{}, \newacronym{}{}{}) when adding highlights. Because highlights are established using \colorbox{} and \addfootnote{}, this can cause a number of compilation issues when trying to build the diff files.

Example:
\subsection{Review of\colorbox{teal}{ MSR }\footnote{2h: Reduce acronyms/jargon}Multiphysics Simulations and Results} \label{sec:msr-tools}

This issue can be resolved when the highlight function of the script is modified to avoid highlighting in such special environments.